US2560738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe-cutting machine
Assignee: Individual
•
Filing: 1948-02-28
•
Granted: 1951-07-17
•
Expires: 1968-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Martin C Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
B; B23; B23Q; B23Q27/00; B23D; B23D21/00; B23D21/02; B23K; B23K7/00; B23K7/005; B23K7/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1661274A
Cited
US1963537A
Cited
US1954549A
Cited
US2379630A
Cited
US2432703A
Cited
US2384128A
Cited
US2448089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |