Drawing for ECON-O-VENT

USPTO serial 72012573

ECON-O-VENT

Reviewed by CopyMark Law Group

Reg. 0650083Status 900
Filing date
Status date
Registration date
Aug 13, 1957
Examiner
Law office

What this means

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
034AIR CONDITIONING APPARATUS-NAMELY, A ROTARY HEAT EXCHANGER MOUNTED TO MOVE CYCLICALLY ACROSS THE RESPECTIVE PASSAGES FOR INCOMING AND OUTGOING AIR OF A ROOM OR OTHER ENCLOSURE TO EXCHANGE THE THERMODYNAMIC CHARACTERISTICS OF AIR THEREINEXPIREDJun 15, 1956

Related trademarks

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Prosecution history

DateCodeEventWhat it means
May 18, 1998EXRGEXPIRED SEC. 9
Aug 13, 1977REN1REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

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