Cessão de direito de exploração
#22.1
02/23/1988
RPI 905
The letters patent expired on 06/21/1994: 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: 02/23/1988. We update with every new RPI gazette, published weekly.
Applicants
HOECHST AG
Inventors
B. A. (pessoa física)
L. G. (pessoa física)
M. G. (pessoa física)
S. G. (pessoa física)
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
02/23/1988
RPI 905
#16.1
01/29/1985
RPI 745
#13.1
10/23/1984
RPI 731
07/10/1984
RPI 716
#9.1
05/15/1984
RPI 708
#6.1
12/13/1983
RPI 686
#6.1
11/16/1982
RPI 630
#21.1
06/21/1994
RPI 1229
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.