US2864016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic transmission torque converter
Assignee: Individual
•
Filing: 1955-11-28
•
Granted: 1958-12-09
•
Expires: 1975-11-28
Abstract
No abstract record available.
Inventors
- 👤 Waltscheff Dimo Dimitroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:02
CPC Classifications
H; H02; H02K; H02K51/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US709848A
Cited
GB190828438A
Cited
US1242714A
Cited
US1245762A
Cited
US1386524A
Cited
US1817660A
Cited
US2414287A
Cited
US2465006A
Cited
US2546736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |