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Official data from INPI

PROCESSO PARA PREPARACAO DE TRIHALOGENETO DE MONO-HIDROCARBILESTANHO

ConcedidaInvention Patent
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Application data

Number

PI7803401

Type

Invention Patent

Filing

08/29/1977

Publication

-
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Progress at the INPI

  1. Filing08/29/77
  2. Publication
  3. Examination
  4. Allowance02/08/83
  5. Grant08/30/83
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 08/30/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PENNWALT CORP

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Inventors

R. G. (pessoa física)

Technical data

IPC Classification

C07F 7/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/07/1983

RPI 659

Deferimento

#9.1

02/08/1983

RPI 642

Exigência - art. 36 da LPI

#6.1

08/10/1982

RPI 616

6.2

11/24/1981

RPI 579

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

20.4

11/05/1991

RPI 1092

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