Pedido de certificado de adição de invenção
#5.1
02/23/1988
RPI 905
Application data
Number
PI8500870Type
Filing
Publication
The patent was granted on 11/26/1991 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: 02/23/1988. We update with every new RPI gazette, published weekly.
Applicants
Exxon Research And Engineering Company
US
Inventors
A. D. (pessoa física)
CA
D. M. (pessoa física)
US
IPC Classification
Priority claims
US
589.536 · 03/14/1984
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