Solicitação de exame técnico
#4.1
07/18/1989
RPI 978
Application data
Number
PI8701200Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 07/18/1989. We update with every new RPI gazette, published weekly.
Applicants
Otis Elevator Company
US
Inventors
H. E. (pessoa física)
AT
W. K. (pessoa física)
AT
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/18/1989
RPI 978
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01/12/1988
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#2.1
06/23/1987
RPI 870
#21.1
Patente extinta em 16/03/2002
07/29/2008
RPI 1960
#16.1
04/30/1991
RPI 1065
#13.1
02/19/1991
RPI 1055
#9.1
11/06/1990
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