US3411093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency tracking circuits
Assignee: Unisys Corp
•
Filing: 1965-09-02
•
Granted: 1968-11-12
•
Expires: 1985-09-02
Abstract
No abstract record available.
Inventors
- 👤 Gaylor Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:04
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2620441A
Cited
US2931901A
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US3011110A
Cited
US3058052A
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US3241077A
Cited
US3355668A
Cited
US3307408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |