US3427631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light beam recorder using vibrated lens system
Assignee: RCA Corp
•
Filing: 1967-02-01
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Granted: 1969-02-11
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Expires: 1987-02-01
Abstract
No abstract record available.
Inventors
- 👤 Philip J Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:26
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/12; G11B7/14; G01; G01D; G01D15/00; G01D15/14
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |