Patent JPS61293416A successfully refreshed from Google Patents.
US3469204A
Expired / Lapsed
US
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Proximity sensitive on-off oscillator switch circuit
Assignee: Whittaker Corp
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Filing: 1967-09-14
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Granted: 1969-09-23
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Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 John J Magyar
- 👤 Richard J Zollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:50
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/945; H03K17/95; H03K17/952; H03K17/9537; H03K17/9542; H03K17/9547
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2883538A
Cited
US2819447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |