Patent US2979976A successfully refreshed from Google Patents.
US2979976A
Expired / Lapsed
US
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Plier-type tube bending tool
Assignee: IMP Eastman Corp
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Filing: 1959-04-06
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Granted: 1961-04-18
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Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 George E Franck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:58
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/06; B21D7/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA464413A
Cited
CH59247A
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AT96480B
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US2127185A
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US2171907A
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US2428237A
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US2464800A
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US2831382A
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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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |