Questions tagged [us4734658]
The us4734658 tag has no usage guidance.
1
question
2
votes
0answers
149 views
Is patent US 4,734,658 A avalible free of change in commercial products? [closed]
In reference to the patent: US 4,734,658 A
We are from India, we wish to use this patent in one of our products. Can we use this patent free of charge or we have to pay some amount?
