Exigência - art. 36 da LPI
#6.1
08/15/1989
RPI 982
Application data
Number
PI8306556Type
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: 08/15/1989. We update with every new RPI gazette, published weekly.
Applicants
The Dow Chemical Company
US
Inventors
A. F. (pessoa física)
US
C. W. (pessoa física)
US
G. F. (pessoa física)
US
J. W. (pessoa física)
US
IPC Classification
Priority claims
US
444.773 · 11/26/1982
US
492.983 · 05/09/1983
US
520.399 · 08/04/1983
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