US3497722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for switching a selected number of pulses at zero current
Assignee: Individual
•
Filing: 1966-05-03
•
Granted: 1970-02-24
•
Expires: 1986-05-03
Abstract
No abstract record available.
Inventors
- 👤 John Fairweather
- 👤 Jacob Moneta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:49
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H02M1/083; H03; H03K; H03K17/00; H03K17/13; H03K17/136; H03K3/00; H03K3/02; H03K3/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2269151A
Cited
US2165048A
Cited
US2228844A
Cited
USRE26119E
Cited
US3412314A
Cited
US3411020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |