US2845986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for automatically coiling stiff wire into a helix
Assignee: AT&T Inc
•
Filing: 1954-05-17
•
Granted: 1958-08-05
•
Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Larsen
- 👤 Warren O Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:14
CPC Classifications
B; B21; B21F; B21F11/00; B21F3/00; B21F3/02; B21F3/04; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8841; Y10T83/8843
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1842223A
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US2248149A
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US2291922A
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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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |