Publicação do pedido de patente
#3.1
12/05/1989
RPI 998
Application data
Number
PI8902042Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 12/05/1989. We update with every new RPI gazette, published weekly.
Applicants
American Telephone & Telegraph Company
US
Inventors
B. P. (pessoa física)
US
C. B. (pessoa física)
US
J. S. (pessoa física)
US
J. G. (pessoa física)
US
T. D. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/05/1989
RPI 998
#2.1
06/13/1989
RPI 973
#21.1
Patente extinta em 28/04/2004
12/22/2009
RPI 2033
#16.1
11/29/1994
RPI 1252
#13.1
06/07/1994
RPI 1227
#9.1
02/22/1994
RPI 1212
#4.1
02/25/1992
RPI 1108
From the same holder
Same category
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