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US2854197A
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Idler wheel for tape drive mechanisms
Assignee: Soroban Engineering Inc
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Filing: 1955-06-08
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Granted: 1958-09-30
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Expires: 1975-06-08
Abstract
No abstract record available.
Inventors
- 👤 John H Mzcneill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:54
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G06; G06K; G06K13/00; G06K13/18; G06K13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733871A
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US2120735A
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US2304913A
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US2568431A
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US2656129A
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US2708554A
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US2687884A
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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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |