US2528703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant amplitude oscillator
Assignee: Gulf Research and Development Co
•
Filing: 1945-01-22
•
Granted: 1950-11-07
•
Expires: 1965-01-22
Abstract
No abstract record available.
Inventors
- 👤 Muffly Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
H; H03; H03L; H03L1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2053154A
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GB460298A
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US2252059A
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US2213357A
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US2407202A
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US2406870A
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US2438964A
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US2413808A
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US2447849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |