US2639097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil winding
Assignee: Individual
•
Filing: 1946-06-05
•
Granted: 1953-05-19
•
Expires: 1966-06-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Benjamin B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:34
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/2848; B65H55/00; B65H55/04; B65H55/043; H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/064; H01F41/066; H01F41/068
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US360108A
Cited
US675801A
Cited
US795279A
Cited
US825291A
Cited
US1135470A
Cited
GB182574A
Cited
US1541683A
Cited
US1889011A
Cited
US1870519A
Cited
US1950738A
Cited
US1915843A
Cited
FR745997A
Cited
GB407786A
Cited
US2243624A
Cited
US2344079A
Cited
US2365612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |