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Official data from INPI

APERFEICOAMENTO EM APARELHO COM SUPERFICIE RASPADA

Em AnáliseInvention Patent

Application data

Number

PI7900115

Type

Invention Patent

Filing

02/10/1978

Publication

-

Progress at the INPI

  1. Filing02/10/78
  2. Publication
  3. Examination
  4. Allowance07/13/82
  5. Grant02/22/83
  6. Terminated01/28/92

The patent was granted on 02/22/1983 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: 02/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CHEMETRON CORP

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

02/17/1988

RPI 904

20.7

02/09/1988

RPI 903

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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