Concessão da patente
#16.1
07/28/1987
RPI 875
Application data
Number
PI8203244Type
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: 07/28/1987. We update with every new RPI gazette, published weekly.
Applicants
Keystone International, Inc.
US
Inventors
W. S. (pessoa física)
US
IPC Classification
Priority claims
US
344.503 · 02/01/1982
US
F16K 1/26 · 02/01/1982
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