Patent US2182812A successfully refreshed from Google Patents.
US2979103A
Expired / Lapsed
US
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Method and apparatus for bending tubes
Assignee: Individual
•
Filing: 1956-09-19
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Granted: 1961-04-11
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Expires: 1976-09-19
Abstract
No abstract record available.
Inventors
- 👤 Bowman Henry Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:33
CPC Classifications
B; B21; B21D; B21D9/00; B21D9/05; B21D9/07; B21D9/073
Claims Analysis
Total Claims: 0
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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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |