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Official data from INPI

CLASSIFICADOR PLANO,LIVREMENTE OSCILANTE

ConcedidaInvention Patent
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Application data

Number

PI7902128

Type

Invention Patent

Filing

05/02/1978

Publication

-
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Progress at the INPI

  1. Filing05/02/78
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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

Applicants and inventors

Applicants

BUEHLER AG GEB

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Inventors

K. A. (pessoa física)

Technical data

IPC Classification

B07B 13/06

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

15.0

05/18/1982

RPI 604

Exigência - art. 36 da LPI

#6.1

04/20/1982

RPI 600

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

20.4

12/26/1990

RPI 1047

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