US3404711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil forming mechanism
Assignee: Hickok Manufacturing Co
•
Filing: 1966-01-17
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Granted: 1968-10-08
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 John O Whitcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:59
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/12; B42B5/123; B21; B21F; B21F3/00; B21F3/02; B21F3/04; B21F45/00; B21F45/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |