Concessão da patente
#16.1
05/30/1989
RPI 971
Application data
Number
PI8204577Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
A. G. (pessoa física)
US
IPC Classification
Priority claims
US
290,382 · 08/05/1981
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