Concessão da patente
#16.1
10/24/1989
RPI 992
Application data
Number
PI8303536Type
Filing
Publication
The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 10/24/1989. We update with every new RPI gazette, published weekly.
Applicants
Fritzsche Dodge & Olcott Inc.
US
Inventors
B. W. (pessoa física)
US
T. Z. (pessoa física)
US
IPC Classification
Priority claims
US
394.847 · 07/02/1982
US
494.674 · 05/13/1983
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/24/1989
RPI 992
#13.1
09/05/1989
RPI 985
#9.1
05/09/1989
RPI 968
#6.1
11/22/1988
RPI 944
12/29/1987
RPI 897
#15.3
09/29/1987
RPI 884
#4.1
06/03/1986
RPI 815
#3.1
02/14/1984
RPI 695
#2.1
08/16/1983
RPI 669
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era A61K 7/46.
03/27/2018
RPI 2464
#21.1
Patente extinta em 01/07/98
07/01/2008
RPI 1956
04/22/1997
RPI 1377
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.