US3491202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-polar phase detector and corrector for split phase pcm data signals
Assignee: JAMES W BAILEY
•
Filing: 1966-09-30
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Granted: 1970-01-20
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 James W Bailey
- 👤 Louis A Koschmeder
- 👤 Donald F Mcafee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/20; H04L25/24; H04L25/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3144608A
Cited
US3156893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |