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How do i find out when a patent number was registered?
You communicate with the Patent Office.
How many facial expressions can a human make?
I bet it's not close to 10,000 i bet it will be some were about around 30 or more i bet more
What did Einstein do for a living?
technical assistant in the Swiss Patent Office
What did Albert Einstein invent and when?
Einstein was a theoretical physicist, as well as an inventor. He did come up with one particular formula that you may have heard of...E=MC2 (E=MC squared). He did a lot of that kind of thing but this was his most famous, which he presented in 1905. He co-invented a type of refrigerator with no moving parts; patent number 1781541. An electromagnetic pump; patent number GB303065, a self adjusting camera; patent number US2058562, and a sound replication device; patent number DE590783. Along with dozens of other patents worldwide. You may look up the patent numbers to see when they were filed.
How did Albert Einstein's career start?
Slowly! Einstein's career as a physicist started without recognition in a patent office. His recognition came when Planck went out of his way to recognize Einstein's contribution by visiting him at the patent office and publicly praising him.
