Concessão da patente
#16.1
08/31/1982
RPI 619
The patent was granted on 08/31/1982 and is in force until 08/31/1997. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.
Protection valid until:08/31/1997
Latest action published by the INPI: 08/31/1982. We update with every new RPI gazette, published weekly.
Applicants
DERRICK MFG CORP
Inventors
D. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/31/1982
RPI 619
#13.1
03/23/1982
RPI 596
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11/17/1981
RPI 578
02/19/1991
RPI 1055
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08/28/1990
RPI 1030
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