US3404232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized pulse regenerator
Assignee: AT&T Inc
•
Filing: 1964-12-01
•
Granted: 1968-10-01
•
Expires: 1984-12-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Burford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:03
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/20; H04L25/24; H04L25/242; H04L7/00; H04L7/02; H04L7/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3122729A
Cited
US3225213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |