US2769932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic couplings
Assignee: Tormag Transmissions Ltd
•
Filing: 1954-03-15
•
Granted: 1956-11-06
•
Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Igor V Zozulin
- 👤 George J Okulitch
- 👤 George M Volkoff
- 👤 Vladimir J Okulitch
- 👤 Alec S J Ellett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:56
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H02K49/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US643413A
Cited
US1988922A
Cited
US2259311A
Cited
GB586576A
Cited
US2396000A
Cited
US2479989A
Cited
FR985737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |