Deferimento
#9.1
10/10/1989
RPI 990
Application data
Number
PI8601927Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants
Townsend Engineering Company
US
Inventors
D. S. (pessoa física)
R. T. (pessoa física)
US
R. D. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#9.1
10/10/1989
RPI 990
#6.1
05/16/1989
RPI 969
#4.1
08/16/1988
RPI 930
#3.1
01/06/1987
RPI 846
#2.1
11/04/1986
RPI 837
#21.1
Patente extinta em 29/04/2001
07/22/2008
RPI 1959
#16.1
05/29/1990
RPI 1020
#13.1
02/06/1990
RPI 1005
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.