Patents: Final issuance takes long time! So, can I start manufacturing after being registered @ Patent Office?

Yes, I have the original bill of PO fees payments, after that I talked to a friend who works as Deputy-GM in the same field of industries.

He LOVED the invention and said it's a brilliant one, He wanted it to be manufactured right away, and planing to invite me on a meeting within 3 day's with the GM.

BUT how to convince such hard-headed, old-stylish GM if he asked me: There is no prove that you own the patent yet! How can you rent or sell it to us?

Please HELP me to reply if above question will be asked, so to be ready for unexpected surprises!!

BTW: I just can't wait approx 2 years to get the final Certificate then to start working it out, I really should manufacture it ASAP.

Thanks to every contributer and reader. ByeForNow

Many companies do manufacture while the patent for an item is pending, which is why you see "Patent Pending" on any number of products. And, while the above posters are correct that there is a risk inherent in manufacturing during the patent process, in fact being issued a patent is not a guarantee that you won't be sued for infringement.

It's not all that uncommon for rivals to assert that your patent should not have been issued by the USPTO, and that in fact your design, notwithstanding your patent, infringes theirs.

Bottom line: you should be working with a patent attorney (and presumably are, if you have an application pending). Have your attorney do a search and offer an opinion on the degree of risk if you proceed now, rahter than waiting.

You can start manufacturing even without the patent.

However, you may be liable if your manufacturing infringes on a pre-existing patent. And even if it doesn't, if your patent is eventually denied, then you are not protected if someone duplicates your invention.

If your patent is approved, then your protection back-dates to the initial registration date.

Yes, you can start manufacturing it. But it may be risky. If you license an invention that you don't own to a company (for example, if they deny the patent because it is too similar to someone else's), then you could get sued for patent infringement. So it's safest to wait until you know for sure.