US2775450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aligning means to be used in the production of magnetic sound recording tape
Assignee: Audio Devices Inc
•
Filing: 1952-06-20
•
Granted: 1956-12-25
•
Expires: 1972-06-20
Abstract
No abstract record available.
Inventors
- 👤 William C Speed
- 👤 James J Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:32
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1025184A
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US1360717A
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US2244864A
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US2291830A
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US2281965A
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US2331030A
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US2491636A
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US2630319A
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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) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |