US3433979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Majority power sensor
Assignee: AT&T Inc
•
Filing: 1967-03-28
•
Granted: 1969-03-18
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Expires: 1987-03-28
Abstract
No abstract record available.
Inventors
- 👤 William M Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:01
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/0038; H; H03; H03K; H03K5/00; H03K5/22; H03K5/24; H03K5/2463; H04; H04L; H04L27/00; H04L27/18; H04L27/22; H04L27/233; H04L27/2331
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3319085A
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 |