US3320083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making magnetic tapes
Assignee: Individual
•
Filing: 1963-06-21
•
Granted: 1967-05-16
•
Expires: 1983-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Adolphe Rusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:31
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/73; G11B5/739; G11B5/73923; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1534033A
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US1805568A
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US2547170A
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US2461240A
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US2610936A
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US2712843A
Cited
US2755196A
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US2887454A
Cited
US3144882A
Cited
US3179533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |