Solicitação de exame técnico
#4.1
04/26/1988
RPI 914
Application data
Number
PI8506902Type
Filing
Publication
PCT
US1985001665 The letters patent expired on 12/05/2012: 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: 04/26/1988. We update with every new RPI gazette, published weekly.
Applicants
W. F. (pessoa física)
US
Inventors
H. S. (pessoa física)
US
H. W. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
04/26/1988
RPI 914
#1.3
12/09/1986
RPI 842
#21.1
Patente extinta em 29/09/2008
12/05/2012
RPI 2187
#16.1
09/29/1998
RPI 1449
#9.1
02/25/1998
RPI 1418
#6.1
02/06/1996
RPI 1314
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.