FAQs Patent Questions

Question:How can I get Land Entry file information for patents?

Answer:
Land Entry files were created when a person claimed land under an act of Congress. They first had to fill out an application, and sometimes provide other information(marriage or immigration documents), at the local General Land Office.

Question:Public Law 91577 provides a system of protection for sexually reproduced varieties, for which protection was not previously provided,

Answer:
Public Law 91577, approved December 24, 1970, provides for a system of protection for sexually reproduced varieties, for which protection was not previously provided, under the administration of a Plant Variety Protection Office within the Department of Agriculture.

Question:Where can I find information about patents obtained for stem cells?

Answer:
The U.S. Patent and Trademark Office offers a full-text search of issued patents and published applications. Try searching for "stem cell" or "stem cells."

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