Publicação do pedido de patente
#3.1
03/21/1989
RPI 961
Application data
Number
PI8804339Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 03/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
D. K. (pessoa física)
US
IPC Classification
Priority claims
US
090.671 · 08/28/1987
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