US2705614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power operated pipe tongs
Assignee: Byron Jackson Co
•
Filing: 1949-05-07
•
Granted: 1955-04-05
•
Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 Paul S Mckibben
- 👤 John L Chrisman
- 👤 James M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:39
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/16; E21B19/161; E21B19/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1837689A
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US1970999A
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US1869445A
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US1954920A
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US2022197A
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US2000221A
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US2204112A
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US2248836A
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US2311225A
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US2351872A
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US2351887A
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US2453369A
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US2477710A
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US2544639A
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US2450934A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |