USPTO serial 86399519
DIFFERENCE ENGINE
Reviewed by CopyMark Law Group
- Filing date
- Status date
- Registration date
- Nov 24, 2015
- Examiner
- DALIER, JOHN DAVID
- Law office
- PUBLICATION AND ISSUE SECTION
What this means
Status 800 means the registration was renewed after acceptable combined Section 8 and Section 9 filings. The mark remains registered for another 10-year term with active federal protection. Calendar the next Section 8 and 9 deadline in 10 years and maintain monitoring.
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Owner
Washington, DC, US
Washington, DC, US
Washington, DC, US
WASHINGTON, DC, US
BOSTON, MA, US
WASHINGTON, DC, US
Attorney of record
The USPTO lists this attorney as the applicant's representative for correspondence on this application.
Thomas W. Brooke
Thomas W. Brooke HOLLAND & KNIGHT LLP800 17TH ST NW STE 1100WASHINGTON, DC 20006-3962United StatesGoods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 042 | Software development services in the field of education; hosting the software, websites and other computer applications of others on a virtual private server | ACTIVE | Jul 6, 2012 |
Related trademarks
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
- Other trademarks owned by Learning Objects, Inc.
- Other trademarks owned by Learning Objects, Inc.
- Other trademarks owned by Learning Objects, Inc.
- Other trademarks owned by LEARNING OBJECTS, LLC
- Other trademarks owned by CENGAGE LEARNING, INC.
- Other trademarks owned by LO VENTURES LLC
- Other trademarks in Class 042
- Similar marks named DIFFERENCE ENGINE
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Mar 7, 2026 | NA89 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED | — |
| Mar 7, 2026 | RNL1 | REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS) | The trademark registration was renewed for another 10-year term after acceptable maintenance filings. RNL1, RNL2, and RNL3 indicate which renewal cycle (first, second, or third 10-year term) was recorded. The registration remains active. |
| Mar 7, 2026 | 89AG | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED | The USPTO accepted your combined Section 8 declaration and Section 9 renewal application. The registration is renewed for another 10-year term. The next combined maintenance filing will be due at the following 10-year anniversary. |
| Mar 6, 2026 | APRE | CASE ASSIGNED TO POST REGISTRATION PARALEGAL | — |
| Dec 11, 2025 | E89R | TEAS SECTION 8 & 9 RECEIVED | — |
| Nov 24, 2024 | REM2 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED | — |
| Sep 20, 2021 | NA85 | NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED | — |
| Sep 20, 2021 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |
| Sep 20, 2021 | APRE | CASE ASSIGNED TO POST REGISTRATION PARALEGAL | — |
| Jun 7, 2021 | E815 | TEAS SECTION 8 & 15 RECEIVED | — |
| Nov 24, 2020 | REM1 | COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED | — |
| Jul 22, 2020 | ASGN | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP | — |
| Mar 4, 2020 | ASGN | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP | — |
| Jan 29, 2020 | ASGN | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP | — |
| Nov 24, 2015 | R.PR | REGISTERED-PRINCIPAL REGISTER | Your trademark is registered on the Principal Register — the strongest form of federal trademark protection. You may use the ® symbol for the covered goods and services. Maintenance filings (Section 8 and renewals) are required to keep the registration alive. |
| Sep 8, 2015 | NPUB | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED | — |
| Sep 8, 2015 | PUBO | PUBLISHED FOR OPPOSITION | Your mark was published in the USPTO Official Gazette for a 30-day opposition window. During that period, third parties who believe they would be harmed can file an opposition. If no opposition is filed, prosecution usually continues toward registration or a Notice of Allowance. |
| Aug 19, 2015 | NONP | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED | — |
| Aug 6, 2015 | PREV | LAW OFFICE PUBLICATION REVIEW COMPLETED | — |
| Aug 1, 2015 | ALIE | ASSIGNED TO LIE | — |
| Jul 21, 2015 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER | — |
| Jul 20, 2015 | NREV | NOTICE OF REVIVAL - E-MAILED | — |
| Jul 20, 2015 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Jul 20, 2015 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Jul 20, 2015 | TROA | TEAS RESPONSE TO OFFICE ACTION RECEIVED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Jul 20, 2015 | PETG | PETITION TO REVIVE-GRANTED | — |
| Jul 20, 2015 | PROA | TEAS PETITION TO REVIVE RECEIVED | — |
| Jul 20, 2015 | ABN2 | ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE | The trademark application was abandoned because a required response or document was not filed by the deadline — usually a missed Office Action response. The application is dead unless a petition to revive is granted within a limited time. |
| Dec 22, 2014 | GNRN | NOTIFICATION OF NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Dec 22, 2014 | GNRT | NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Dec 22, 2014 | CNRT | NON-FINAL ACTION WRITTEN | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Dec 15, 2014 | DOCK | ASSIGNED TO EXAMINER | — |
| Sep 27, 2014 | MDSC | NOTICE OF DESIGN SEARCH CODE E-MAILED | — |
| Sep 26, 2014 | NWOS | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED | — |
| Sep 22, 2014 | NWAP | NEW APPLICATION ENTERED | — |