US2122485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coiling apparatus
Assignee: AT&T Inc
•
Filing: 1934-03-23
•
Granted: 1938-07-05
•
Expires: 1954-03-23
Abstract
No abstract record available.
Inventors
- 👤 Oscar G Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:01
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; B; B65; B65H; B65H54/00; B65H54/02; B65H54/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-07-04 | 1942-01-03 | 1942-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-04 | 1946-01-03 | 1946-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-04 | 1950-01-03 | 1950-07-05 | $7700.00 | Window Closed / Lapsed |