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Official data from INPI

"HOMOPOLIÉSTER OU COPOLIÉSTER LINEAR E PROCESSO PARA SUA PREPARAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI7801202

Type

Invention Patent

Filing

02/28/1978

Publication

-

Progress at the INPI

  1. Filing02/28/78
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. Terminated06/29/93

The patent was granted on 07/26/1983 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AKZO N.V.

See this company's full portfolio

Inventors

B. A. (pessoa física)

K. J. (pessoa física)

Technical data

Priority claims

DE

P:. 27 . 08 790 · 03/01/1977

DE

P:. 27.08 790.7 · 03/01/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

07/20/1982

RPI 613

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08G 63/22; C08G 63/00; D01F 6/92.

03/27/2018

RPI 2464

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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