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Official data from INPI

RETENTOR PARA TUBO DE TROCA DE CALOR E APARELHO TROCADOR DE CALOR

PublicadaInvention Patent

Application data

Number

PI8701438

Type

Invention Patent

Filing

03/30/1987

Publication

12/29/1987

Progress at the INPI

  1. Filing03/30/87
  2. Publication12/29/87
  3. Abandoned08/21/90
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deere & Company

US

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Inventors

D. E. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

846.433 · 03/31/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/29/1987

RPI 897

Pedido de patente depositado

#2.1

07/07/1987

RPI 872

Arquivamento - Art. 36 §1° da LPI

#11.2

08/20/1991

RPI 1081

Exigência - art. 36 da LPI

#6.1

03/12/1991

RPI 1058

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

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