Nova Patents
US830451A

Scraping tool or implement.

Abstract

This record has no abstract on file.

Term

Term ended

Expired 4 September 1923, 103.1 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

Every citation, both ways

Citations
DocumentRelationOfficeCited during
US5890293ACited byUnited States of AmericaSearch report
US6000137ACited byUnited States of AmericaSearch report
US6269542B1Cited byUnited States of AmericaApplicant