Patent US2768316A successfully refreshed from Google Patents.
US2768316A
Expired / Lapsed
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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 04:39
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K49/104; H02K49/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2437871A
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US2460015A
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Cited
US2575360A
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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 |