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Official data from INPI

APERFEICOAMENTO EM SISTEMA DE TRANSFERENCIA DE CALOR

Em AnáliseInvention Patent

Application data

Number

PI7807667

Type

Invention Patent

Filing

11/22/1977

Publication

-

Progress at the INPI

  1. Filing11/22/77
  2. Publication
  3. Examination
  4. Allowance04/05/83
  5. Grant10/25/83
  6. Terminated06/14/88

The patent was granted on 10/25/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIROYAL INC

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Inventors

B. D. (pessoa física)

L. F. (pessoa física)

N. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

16.3

01/10/1984

RPI 690

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/05/1983

RPI 650

6.2

04/06/1982

RPI 598

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