US3434056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distortion monitoring by comparing square and cubic law distortion to carrier
Assignee: AT&T Inc
•
Filing: 1966-05-31
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Granted: 1969-03-18
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Floyd K Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:36
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2975231A
Cited
US3231819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |