Solicitação de exame técnico
#4.1
03/28/1989
RPI 962
Application data
Number
PI8603428Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 03/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
J. R. (pessoa física)
US
IPC Classification
Priority claims
US
758.044 · 07/23/1985
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