Solicitação de exame técnico
#4.1
08/15/1989
RPI 982
Application data
Number
PI8604816Type
Filing
Publication
The letters patent expired on 07/22/2008: 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
Polyvinyl Chemicals Inc.
US
Zeneca, Inc.
US
Inventors
R. C. (pessoa física)
IPC Classification
Priority claims
GB
8524579 · 10/04/1985
GB
8623573 · 10/01/1986
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