Drawing for Serial No. 72177520

USPTO serial 72177520

Serial No. 72177520

Reviewed by CopyMark Law Group

Reg. 0789067Status 900
Filing date
Status date
Registration date
May 4, 1965
Examiner
Law office
FILE DESTROYED

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This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.

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Owner

Goods and services

ClassDescriptionStatusFirst use
034HEAT EXCHANGER APPARATUS FOR EXCHANGING HEAT BETWEEN PLURAL CONFINED FLUID STREAMS, PARTICULARLY INDUSTRIAL HEAT EXCHANGER APPARATUS HAVING GLASS HEAT TRANSMITTING ELEMENTSEXPIRED

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Prosecution history

DateCodeEventWhat it means
Aug 4, 1985EXRGEXPIRED SEC. 9

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