Publicação do pedido de patente
#3.1
10/17/1989
RPI 991
Application data
Number
PI8900859Type
Filing
Publication
The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
Exxon Chemical Patents, Inc
US
Inventors
J. E. (pessoa física)
US
L. C. (pessoa física)
US
M. W. (pessoa física)
US
P. M. (pessoa física)
US
T. P. (pessoa física)
US
IPC Classification
Priority claims
US
160,690 · 02/26/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
10/17/1989
RPI 991
#2.1
04/11/1989
RPI 964
#21.1
Patente extinta em 24/02/2009
12/18/2012
RPI 2189
#16.1
10/28/1997
RPI 1404
#13.1
09/23/1997
RPI 1399
#9.1
03/04/1997
RPI 1370
#6.1
12/12/1995
RPI 1306
#4.1
11/12/1991
RPI 1093
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.