Carta-patente expirada
#21.1
08/16/1988
RPI 930
Progress at the INPI
- Filing06/20/77
- Publication
- Examination
- Allowance
- Grant
- Expired08/16/88
The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
ASTEN & CIA LTDA
Inventors
A. H. (pessoa física)
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.