US2880280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple magnetic transducing head with mounting and adjustment means
Assignee: Monroe Calculating Machine Co
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Filing: 1954-10-18
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Granted: 1959-03-31
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Expires: 1974-10-18
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Gernert
- 👤 Franklin M Raddin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:48
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/10; G11B5/127; G11B5/29; G11B5/295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2592652A
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US2662120A
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US2628286A
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FR1036256A
Cited
GB695150A
Cited
US2769036A
Cited
US2644856A
Cited
US2640886A
Cited
US2756280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |