US3449528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two speed tape transport with independent audio and video modes of operation
Assignee: IIT Research Institute
•
Filing: 1965-05-17
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Granted: 1969-06-10
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Marvin Camras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:06
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/295; G11B15/44; G11B15/442; G11B15/60; G11B15/602; G11B5/41; G11B5/48; G11B5/54; G11B5/55; G11B5/5504; G11B5/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |