18.8
11/28/1989
RPI 997
The letters patent expired on 07/06/1993: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
LEYBOLD HERAEUS GMBH & CO KG
Inventors
No inventors listed.
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
11/28/1989
RPI 997
#18.2
08/29/1989
RPI 984
#13.1
09/21/1982
RPI 622
06/01/1982
RPI 606
#9.1
06/01/1982
RPI 606
#6.1
10/20/1981
RPI 574
#21.1
07/06/1993
RPI 1179
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.