Solicitação de exame técnico
#4.1
08/05/1986
RPI 824
Application data
Number
PI8400571Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 08/05/1986. We update with every new RPI gazette, published weekly.
Applicants
PPG Industries, Inc.
US
Inventors
T. M. (pessoa física)
US
IPC Classification
Priority claims
US
465.702 · 02/10/1983
US
465.703 · 02/10/1983
US
465.704 · 02/10/1983
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