Concessão da patente
#16.1
03/17/1987
RPI 856
Application data
Number
PI8301478Type
Filing
Publication
The patent was granted on 03/17/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 03/17/1987. We update with every new RPI gazette, published weekly.
Applicants
KOPPERS CO INC [US]
Inventors
G. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/17/1987
RPI 856
09/23/1986
RPI 831
#13.1
07/01/1986
RPI 819
#15.11
04/01/1986
RPI 806
#9.1
03/11/1986
RPI 803
#6.1
04/16/1985
RPI 756
#4.1
04/03/1984
RPI 702
#3.1
12/13/1983
RPI 686
#2.1
05/10/1983
RPI 655
#18.2
02/18/1992
RPI 1107
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.