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Official data from INPI

UNIDADE CONVERSÍVEL DE VARREDURA E ESFREGA E PROCESSO DE OPERAR UMA MÁQUINA DE LIMPEZA DE SUPERFÍCIE

PublicadaInvention Patent

Application data

Number

PI8700146

Type

Invention Patent

Filing

01/15/1987

Publication

12/01/1987

Progress at the INPI

  1. Filing01/15/87
  2. Publication12/01/87
  3. Examination07/24/90
  4. Allowance02/26/91
  5. Grant09/24/91
  6. Terminated10/17/95

The patent was granted on 09/24/1991 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: 12/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tennant Company

US

See this company's full portfolio

Inventors

A. W. (pessoa física)

US

M. B. (pessoa física)

US

Technical data

Priority claims

US

819.911 · 01/16/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/01/1987

RPI 893

Pedido de patente depositado

#2.1

05/12/1987

RPI 864

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

06/11/1991

RPI 1071

Deferimento

#9.1

02/26/1991

RPI 1056

Solicitação de exame técnico

#4.1

07/24/1990

RPI 1025

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