US3233192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Independent multi-overtone operation of electro-mechanically frequency controlled oscillators
Assignee: NARCO AVIONICS Inc 270 COMMERCE DRIVE FORT WASHINGTON PA A CORP OF
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Filing: 1963-09-20
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Granted: 1966-02-01
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Smith Frank Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/34; H03B5/36; H03B2200/00; H03B2200/006; H03B2200/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN MULTIPLE-CHANNEL CRYSTAL-CONTROLLED EQUIPMENT; A PLURALITY OF PIEZO-CRYSTALS SUBSTANTIALLY LESSER IN NUMBER THAN THE NUMBER OF CHANNELS IN THE EQUIPMENT; TWO OSCILLATION CIRCUITS HAVING SEPARATE RANGES OF OPERATING FREQUENCIES SUBSTANTIALLY DIFFERENT FROM EACH OTHER; AND SWITCHING MEANS FOR SWITCHING EACH OF SAID OSCILLATION CIRCUITS SIMULTANEOUSLY TO A SELECTED ONE OR TO SELECTED ONES OF SAID CRYSTALS WHEREBY THE SAME CRYSTAL OR DIFFERENT CRYSTALS CONTROL SIMULTANEOUSLY AND INDEPENDENTLY OF EACH
Claim 2
Dependent Claim
69 words
IN MULTIPLE-CHANNEL CRYSTAL-CONTROLLED EQUIPMENT; A PLURALITY OF PIEZO-CRYSTALS SUBSTANTIALLY LESSER IN NUMBER THAN THE NUMBER OF CHANNELS IN THE EQUIPMENT; TWO OSCILLATION CIRCUITS HAVING SEPARATE RANGES OF OPERATING FREQUENCIES SUBSTANTIALLY DIFFERENT FROM EACH OTHER; AND SWITCHING MEANS FOR SWITCHING EACH OF SAID OSCILLATION CIRCUITS SIMULTANEOUSLY TO A SELECTED ONE OR TO SELECTED ONES OF SAID CRYSTALS WHEREBY THE SAME CRYSTAL OR DIFFERENT CRYSTALS CONTROL SIMULTANEOUSLY AND INDEPENDENTLY OF EACH
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |