Concessão da patente
#16.1
10/25/1988
RPI 940
Application data
Number
PI8501399Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 10/25/1988. We update with every new RPI gazette, published weekly.
Applicants
The Air Preheater Company, Inc
US
Inventors
S. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/25/1988
RPI 940
#13.1
07/26/1988
RPI 927
#9.1
04/12/1988
RPI 912
#4.1
08/19/1986
RPI 826
#3.1
11/26/1985
RPI 788
#2.1
06/18/1985
RPI 765
#21.1
Patente extinta em 27/03/2000
07/15/2008
RPI 1958
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.