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Is this patent still valid and in force? 1

uk patent application GB 2340070 A IS VALIAD AND INFORCE ?
MANISH's user avatar
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1 answer
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Patent valid or expired?

In reference to the patent: US4146939 I don't know much about patents and I can't figure out what the status is on this patent. I'm working on a new invention that attaches to this patent[US4146939]. ...
Joey's user avatar
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2 answers
83 views

Only Application number yet valid is granted

During prior art searches or freedom to operate searches one encounters patent application numbers that have a "(A)" after the number. If you research other publications, of the same invention, or ...
Deon P Hugo's user avatar
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3 answers
99 views

is this patent still enforceable?

In reference to the patent: US5991151 is this patent still valid and upheld or has it lapsed?
powerdesigner1's user avatar
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3 answers
1k views

US 6067803 A is this patent valid in India?

I would like to know untill when is this patent is valid? Is this patent applicable to India?
vinuth shiv's user avatar
1 vote
1 answer
2k views

WO and PCT patents do they have different jurisdictions?

WO and PCT patents do they have different jurisdictions ? If the WO patent has expired, can the PCT patent still be valid? If the PTC patent has expired, can the WO patent still be valid? WO ...
Deon P Hugo's user avatar
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1 answer
2k views

Is WO and US patents valid in EU?

I read allot of the answers to your most question on this website and these where really helpful in getting a general idea of the patent laws. Hope that someone can help me out with the following ...
Ruben Neijenhuijs's user avatar