Patent US3035295A successfully refreshed from Google Patents.
US3035295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape cleaner
Assignee: International Business Machines Corp
•
Filing: 1956-07-02
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Granted: 1962-05-22
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Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Walter S Buslik
- 👤 Victor R Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:05
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1543297A
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US2059263A
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US2095471A
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US2142711A
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US2191691A
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US2288983A
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US2563362A
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US2689196A
Cited
US2778634A
Cited
US2779046A
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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) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |