US2699529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic timer
Assignee: AT&T Inc
•
Filing: 1949-08-26
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Granted: 1955-01-11
•
Expires: 1969-08-26
Abstract
No abstract record available.
Inventors
- 👤 Howard A Wenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:50
CPC Classifications
G; G04; G04F; G04F10/00; G04F10/10; H; H04; H04M; H04M3/00; H04M3/08; H04M3/12; H04M3/22; H04M3/24; H04M3/248; H04Q; H04Q1/00; H04Q1/18; H04Q1/20; H04Q1/22; H04Q1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2021766A
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US2412631A
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US2370692A
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US2301195A
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US2402916A
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US2442403A
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US2421018A
Cited
US2514369A
Cited
US2575759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |