Patent US2361944A successfully refreshed from Google Patents.
Patent US3073978A successfully refreshed from Google Patents.
US3073978A
Expired / Lapsed
US
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Magnetically driven instruments
Assignee: Motors Liquidation Co
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Filing: 1958-11-10
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Granted: 1963-01-15
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Helgeby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:20
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/49; G01P3/495; G01P3/4953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |