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Official data from INPI

MATRIZ DE MATERIAL EM FOLHA PARA CONSTRUÇÃO DE UM RECIPIENTE DE TOPO EM EMPENAE RECIPIENTE

PublicadaInvention Patent

Application data

Number

PI8801626

Type

Invention Patent

Filing

04/06/1988

Publication

11/08/1988

Progress at the INPI

  1. Filing04/06/88
  2. Publication11/08/88
  3. Examination02/26/91
  4. Allowance06/01/93
  5. Grant10/26/93
  6. Terminated12/31/96

The patent was granted on 10/26/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

G. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

036,969 · 04/10/1987

US

132,155 · 12/14/1987

US

160,401 · 03/08/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/08/1988

RPI 942

Pedido de patente depositado

#2.1

08/09/1988

RPI 929

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/01/1993

RPI 1174

Conhecimento de parecer técnico

#7.1

10/20/1992

RPI 1142

Solicitação de exame técnico

#4.1

02/26/1991

RPI 1056

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