Publicação do pedido de patente
#3.1
11/28/1989
RPI 997
Application data
Number
PI8901757Type
Filing
Publication
The letters patent expired on 12/26/2012: 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
W. R. Grace & Co - CONN
US
Inventors
J. K. (pessoa física)
GB
IPC Classification
Priority claims
GB
8808890.1 · 04/15/1988
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