Concessão da patente
#16.1
10/27/1987
RPI 888
Application data
Number
PI8404436Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 10/27/1987. We update with every new RPI gazette, published weekly.
Applicants
The Air Preheater Company, Inc
US
Inventors
B. J. (pessoa física)
G. A. (pessoa física)
H. P. (pessoa física)
I. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/27/1987
RPI 888
#13.1
09/22/1987
RPI 883
#9.1
05/05/1987
RPI 863
#4.1
06/24/1986
RPI 818
#3.1
07/30/1985
RPI 771
#2.1
11/13/1984
RPI 734
#21.1
Patente extinta em 05/09/99
07/08/2008
RPI 1957
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.