Patent US3767210A successfully refreshed from Google Patents.
US3767210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape cleaner apparatus
Assignee: Collins Radio Co
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Filing: 1972-04-24
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Granted: 1973-10-23
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Expires: 1992-04-24
Abstract
Abstract A fine mesh screening means used in a rubbing or sliding relationship to the magnetic oxide side of a magnetic tape to remove dust or other contamination particles from the magnetic tape for the purpose of reducing errors in electrical reading of the magnetic tape.
Inventors
- 👤 C Havens
- 👤 H Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:50
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/50; G11B23/502
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A tape cleaning means comprising, in combination: resilient screening material configured with folded edges with the ends of said folded edges being positioned adjacent one side of said screening material, one end of said folded screening material having a small radius of curvature configuration; and support means attached to the other end of said screening material whereby the end of said screening material having said small radius of curvature is resiliently biased and positioned away from said support means.
Claim 2
Dependent Claim
79 words
A tape cleaning means comprising, in combination: resilient screening material configured with folded edges with the ends of said folded edges being positioned adjacent one side of said screening material, one end of said folded screening material having a small radius of curvature configuration; and support means attached to the other end of said screening material whereby the end of said screening material having said small radius of curvature is resiliently biased and positioned away from said support means.
References Cited (Backward Citations)
US1294180A
Cited
US3035295A
Cited
US3266196A
Cited
US3239868A
Cited
US3262144A
Cited
US3439922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |