USPTO trademark record

DUO-SPORE

Live registered mark · Owner PROPPER MANUFACTURING CO., INC. · Classes 1

Mark details

Owner: PROPPER MANUFACTURING CO., INC.
Serial number: 73074709
Registration number: 1068780
Status: REGISTERED AND RENEWED
Classes: 1 (Chemicals)
Filed: 1976-01-19
Registered: 1977-07-05
Goods / services: INDICATORS FOR MONITORING THE EFFECTIVENESS OF STERILIZATION PROCEDURES

Register data as of 2026-11-08. Records can trail live filings — check the official USPTO search for the latest status before filing.

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