US2669388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Predetermined counter system
Assignee: Individual
•
Filing: 1948-06-05
•
Granted: 1954-02-16
•
Expires: 1968-06-05
Abstract
No abstract record available.
Inventors
- 👤 Fox Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/64; H03K23/66; H03K23/665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2428084A
Cited
US2373134A
Cited
US2403873A
Cited
US2410156A
Cited
US2402939A
Cited
US2560968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |