US2639501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe cutter
Assignee: SPRING LOAD PIPE CUTTER Manufacturing CO
•
Filing: 1947-12-05
•
Granted: 1953-05-26
•
Expires: 1967-12-05
Abstract
No abstract record available.
Inventors
- 👤 Elmer C Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:44
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/06; B23D21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US775581A
Cited
US782226A
Cited
US1040202A
Cited
US1380653A
Cited
US1428712A
Cited
US1897374A
Cited
US1963891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |