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Official data from INPI

DISPENSADOR.

ConcedidaInvention Patent

Application data

Number

PI7904141

Type

Invention Patent

Filing

06/29/1979

Publication

-

Progress at the INPI

  1. Filing06/29/79
  2. Publication
  3. Examination09/21/82
  4. Allowance07/12/83
  5. Grant01/31/84
  6. Expired04/04/95

The letters patent expired on 04/04/1995: 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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Warner-Lambert Company

US

See this company's full portfolio

Inventors

K. E. (pessoa física)

M. V. (pessoa física)

Technical data

IPC Classification

Priority claims

US

929.484 · 07/31/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

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