US3019296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase stabilization of circuits which employ a heterodyne method
Assignee: AT&T Inc
•
Filing: 1958-08-11
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Granted: 1962-01-30
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Expires: 1978-08-11
Abstract
No abstract record available.
Inventors
- 👤 John C Schelleng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:34
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/16; H03D7/161; H03D7/163; H04; H04L; H04L7/00; H04L7/02; H04L7/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA527042A
Cited
US1428156A
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US1550660A
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US1964522A
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US1958954A
Cited
GB578512A
Cited
US2463503A
Cited
US2457136A
Cited
US2933691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |