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Official data from INPI

COMPOSICAO FOTOPOLIMERIZAVEL

ConcedidaInvention Patent

Application data

Number

PI7900746

Type

Invention Patent

Filing

02/07/1979

Publication

-

Progress at the INPI

  1. Filing02/07/79
  2. Publication
  3. Examination10/13/81
  4. Allowance08/04/87
  5. Grant02/23/88
  6. Terminated05/11/93

The patent was granted on 02/23/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

C. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

11/24/1987

RPI 892

Deferimento

#9.1

08/04/1987

RPI 876

Conhecimento de parecer técnico

#7.1

03/08/1983

RPI 646

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era G03C 1/68.

03/20/2018

RPI 2463

Anuidade - prazo legal encerrado

#18.2

05/11/1993

RPI 1171

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