20.7
06/03/1986
RPI 815
The letters patent expired on 08/03/1993: 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: 06/03/1986. We update with every new RPI gazette, published weekly.
Applicants
WIGGINS TEAPE LTD
Inventors
A. R. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
06/03/1986
RPI 815
05/27/1986
RPI 814
#16.1
07/27/1982
RPI 614
#13.1
12/22/1981
RPI 583
#21.1
08/03/1993
RPI 1183
From the same holder
Same category
Patent monitoring
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