Concessão da patente
#16.1
06/28/1988
RPI 923
Application data
Number
PI8401803Type
Filing
Publication
The patent was granted on 06/28/1988 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
Dresser Industries, Inc
US
Inventors
W. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/28/1988
RPI 923
#13.1
03/01/1988
RPI 906
#9.1
11/03/1987
RPI 889
#4.1
01/06/1987
RPI 846
#3.1
11/27/1984
RPI 736
#2.1
06/26/1984
RPI 714
#18.2
10/16/1990
RPI 1037
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.