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Official data from INPI

VARREDOR

Em AnáliseInvention Patent

Application data

Number

PI8504080

Type

Invention Patent

Filing

08/26/1985

Publication

06/17/1986

Progress at the INPI

  1. Filing08/26/85
  2. Publication06/17/86
  3. Examination10/21/86
  4. Allowance07/31/90
  5. Grant02/26/91
  6. Terminated09/19/95

The patent was granted on 02/26/1991 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tennant Company

US

See this company's full portfolio

Inventors

L. F. (pessoa física)

US

M. K. (pessoa física)

US

Technical data

Priority claims

US

644.626 · 08/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

10/31/1989

RPI 993

6.2

05/02/1989

RPI 967

Solicitação de exame técnico

#4.1

10/21/1986

RPI 835

Publicação do pedido de patente

#3.1

06/17/1986

RPI 817

Pedido de patente depositado

#2.1

10/29/1985

RPI 784

Anuidade - prazo legal encerrado

#18.2

09/19/1995

RPI 1294

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

11/13/1990

RPI 1041

Deferimento

#9.1

07/31/1990

RPI 1026

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