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Official data from INPI

ANALISADOR DE PARTÍCULAS.

Arquivada/ExtintaInvention PatentPCT · US1987002744

Application data

Number

PI8707505

Type

Invention Patent

Filing

10/20/1987

Publication

02/21/1989

PCT

US1987002744

Progress at the INPI

  1. Filing10/20/87
  2. Publication02/21/89
  3. Examination05/08/90
  4. Allowance06/08/93
  5. Grant04/26/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Coulter Electronics, Inc.

US

Inventors

C. R. (pessoa física)

US

W. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

921.654 · 10/21/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 20/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/26/1994

RPI 1221

Notificação para pagamento de retribuição

#13.1

10/19/1993

RPI 1194

Deferimento

#9.1

06/08/1993

RPI 1175

Solicitação de exame técnico

#4.1

05/08/1990

RPI 1017

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