Official data from INPI

MÉTODO DE CARBURIZAR UM ARTIGO FERROSO.

ConcedidaInvention Patent

Talk to an expert

Application data

Number

PI8102401

Type

Invention Patent

Filing

04/20/1981

Publication

12/29/1981

View on INPI

Progress at the INPI

Filing04/20/81
Publication12/29/81
Examination03/30/82
Allowance09/01/87
Grant04/26/88
Terminated02/04/92

The patent was granted on 04/26/1988 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: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AIR PRODUCTS AND CHEMICALS, INC.

See this company's full portfolio

Inventors

K. J. (pessoa física)

P. R. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

142,800 · 04/22/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

12/29/1987

RPI 897

Deferimento

#9.1

09/01/1987

RPI 880

Conhecimento de parecer técnico

#7.1

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Solicitação de exame técnico

#4.1

03/30/1982

RPI 597

Publicação do pedido de patente

#3.1

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

From the same holder

102025026159 APARELHO E PROCESSO PARA REGENERAÇÃO A BAIXA TEMPERATURA DE MATERIAL ADSORVENTE 112026014084 112026007565 112026007342 PROCESSO DE MEMBRANA DE BAIXA TEMPERATURA PARA ATUALIZAÇÃO DE BIOGÁS 112026002785 REATOR E MÉTODO PARA REALIZAR REAÇÕES CATALÍTICAS ENDOTÉRMICAS

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.