US3054970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor type low frequency oscillator
Assignee: ELECTRONIC SPECIALTIES CO
•
Filing: 1958-09-26
•
Granted: 1962-09-18
•
Expires: 1978-09-26
Abstract
No abstract record available.
Inventors
- 👤 Donald A Lace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:45
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2812437A
Cited
US2769907A
Cited
US2831113A
Cited
GB801453A
Cited
US2839686A
Cited
US2829257A
Cited
US2901669A
Cited
US2918607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |