U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?

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Examiner: Spivak, K.

Primary examiner statistics: 0 patents; average approval time: N/A
Assistant examiner statistics: 1 patents; average approval time: 860 days

Patent No.

Patent Title:

No patents.

Patent No.	Patent Title:
5291600	Recovery of in-core disk data