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Official data from INPI

ARTIGO DE POLICARBONATO CONFORMADO REVESTIDO, NÃO OPACO E PROCESSO PARA SUA PRODUÇÃO

ConcedidaInvention PatentPCT · US1979000906

Application data

Number

PI7908888

Type

Invention Patent

Filing

10/29/1979

Publication

-

PCT

US1979000906

Progress at the INPI

  1. Filing10/29/79
  2. Publication
  3. Examination06/08/82
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Expired05/09/95

The letters patent expired on 05/09/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

O. D. (pessoa física)

S. S. (pessoa física)

Technical data

Priority claims

US

956.873 · 11/01/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Conhecimento de parecer técnico

#7.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

06/08/1982

RPI 607

Republicação - classificação IPC

#15.11

As classificações anteriores eram: G02B 1/10, B32B 27/08, B32B 27/30

08/25/2015

RPI 2329

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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