Patent US2893292A successfully refreshed from Google Patents.
US2893292A
Expired / Lapsed
US
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Device for removing the excess welding bead from the exterior surface of welded seamtubing
Assignee: Individual
•
Filing: 1957-12-26
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Granted: 1959-07-07
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Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Naperola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:42
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/0807; B21C37/0811; B23; B23D; B23D79/00; B23D79/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T29/49995; Y10T409/00; Y10T409/30; Y10T409/3042; Y10T409/304256; Y10T82/00; Y10T82/25; Y10T82/2527
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306533A
Cited
US2608138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |