Patent US2556004A successfully refreshed from Google Patents.
US2556004A
Expired / Lapsed
US
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Magnetic coupling
Assignee: Old Carco LLC
•
Filing: 1946-07-31
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Granted: 1951-06-05
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Expires: 1966-07-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Sachse
- 👤 Major Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:29
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K49/104; H02K49/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2056177A
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US2075488A
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US2300778A
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US2392148A
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US2346904A
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US2498244A
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US2435112A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |