Concessão da patente
#16.1
07/25/1989
RPI 979
The letters patent expired on 03/19/1996: 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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
AMCHEM PRODUCTS, INC.
H. C. (pessoa física)
US
Inventors
F. F. (pessoa física)
K. T. (pessoa física)
M. A. (pessoa física)
IPC Classification
Priority claims
US
107,017 · 12/26/1979
US
165,734 · 07/03/1980
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