Anuidade - prazo legal encerrado
#18.2
12/15/1987
RPI 895
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Official data from INPI
COMPOSICOES DE ALCOOL POLIVINILICO E PELICULAS SOLUVEIS EM AGUA
Em AnáliseInvention Patent
Progress at the INPI
- Filing08/18/76
- Publication
- Examination
- Allowance01/25/83
- Grant09/27/83
- Terminated12/15/87
The patent was granted on 09/27/1983 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: 12/15/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
DU PONT
Inventors
W. R. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
09/27/1983
RPI 675
Notificação para pagamento de retribuição
#13.1
05/31/1983
RPI 658
Deferimento
#9.1
01/25/1983
RPI 640
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