Concessão da patente
#16.1
11/28/1989
RPI 997
Application data
Number
PI8404973Type
Filing
Publication
The patent was granted on 11/28/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
PPG Industries, Inc.
US
Inventors
B. J. (pessoa física)
US
D. M. (pessoa física)
US
D. E. (pessoa física)
US
R. A. (pessoa física)
US
S. J. (pessoa física)
US
W. C. (pessoa física)
US
IPC Classification
Priority claims
US
538.630 · 10/03/1983
US
538.631 · 10/03/1983
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