Official data from INPI

APARELHO DE FOCALIZAÇÃO DE PLASMA COM ELEMENTO DE DISTORÇÃO DE CAMPO

Arquivada/ExtintaInvention PatentPCT · US1988001142

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Application data

Number

PI8806998

Type

Invention Patent

Filing

04/08/1988

Publication

10/17/1989

PCT

US1988001142

View on INPI

Progress at the INPI

Filing04/08/88
Publication10/17/89
Examination03/20/90
Allowance02/22/94
Grant10/25/94
Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eniricerche SpA

Inventors

V. N. (pessoa física)

Technical data

IPC Classification

G21C 1/00 G21K 5/00 G21K 7/00 H01J 35/00

Priority claims

037.753 · 04/13/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/17/1989

RPI 991

Carta-patente expirada

#21.1

Patente extinta em 08/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

06/07/1994

RPI 1227

Deferimento

#9.1

02/22/1994

RPI 1212

15.9

03/20/1990

RPI 1010

Solicitação de exame técnico

#4.1