DUO SEAL Trademark
Serial Number: 71550105 • Registration: 0537570
DUO SEAL is a trademark filed by
WELCH VACUUM TECHNOLOGY, INC.
on February 18, 1948. The trademark is classified under Class 7 (Machinery).
The application is currently no longer active.
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
February 18, 1948
Registration Date
February 13, 1951
Filing History
CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9
Feb 23, 2002 CAEX
CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9
Feb 23, 2002 CAEX
CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9
Feb 23, 2002 CAEX
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
Aug 6, 1991 RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
Aug 6, 1991 RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
Aug 6, 1991 RNL2
RESPONSE RECEIVED TO POST REG. ACTION
Jul 24, 1991 RRPR
RESPONSE RECEIVED TO POST REG. ACTION
Jul 24, 1991 RRPR
RESPONSE RECEIVED TO POST REG. ACTION
Jul 24, 1991 RRPR
POST REGISTRATION ACTION MAILED - SEC. 9
Apr 11, 1991 PRA9
POST REGISTRATION ACTION MAILED - SEC. 9
Apr 11, 1991 PRA9
POST REGISTRATION ACTION MAILED - SEC. 9
Apr 11, 1991 PRA9
REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8
Feb 13, 1991 9.AF
REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8
Feb 13, 1991 9.AF
REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8
Feb 13, 1991 9.AF
REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)
Feb 13, 1971 REN1
REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)
Feb 13, 1971 REN1
REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)
Feb 13, 1971 REN1
