Patent US2944025A successfully refreshed from Google Patents.
Patent US2848215A successfully refreshed from Google Patents.
US2848215A
Expired / Lapsed
US
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Cutting machine for curved pipe
Assignee: Individual
•
Filing: 1956-08-08
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Granted: 1958-08-19
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Expires: 1976-08-08
Abstract
No abstract record available.
Inventors
- 👤 Earl K Pendergrass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:56
CPC Classifications
B; B23; 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)
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US1907957A
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US2061442A
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US2082967A
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US2459823A
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US2464444A
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US2623742A
Cited
US2652243A
Cited
US2623285A
Cited
US2740621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |