US2768316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnetic couplings
Assignee: Individual
•
Filing: 1953-01-21
•
Granted: 1956-10-23
•
Expires: 1973-01-21
Abstract
No abstract record available.
Inventors
- 👤 Neiss Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:29
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K49/104; H02K49/108
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE545731C
Cited
US1962659A
Cited
US2182469A
Cited
US2255420A
Cited
US2300778A
Cited
US2437871A
Cited
US2460015A
Cited
DE816715C
Cited
US2575360A
Cited
US2481172A
Cited
US2673377A
Cited
US2638558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |