Carta-patente expirada
#21.1
Patente extinta em 21/11/2009
12/26/2012
RPI 2190
Application data
Number
PI8905858Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
E. C. (pessoa física)
US
Elkcorp
US
Inventors
H. H. (pessoa física)
US
J. W. (pessoa física)
US
R. C. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 21/11/2009
12/26/2012
RPI 2190
#25.4
Alterado de: Elcor Corporation
10/18/2005
RPI 1815
#16.1
02/23/1999
RPI 1468
#9.1
08/25/1998
RPI 1444
#6.1
05/05/1998
RPI 1428
#4.1
09/01/1992
RPI 1135
#3.1
06/12/1990
RPI 1022
#2.1
04/03/1990
RPI 1012
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