Patent US2589158A successfully refreshed from Google Patents.
US2589158A
Expired / Lapsed
US
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Mobile-radio and wire system
Assignee: AT&T Inc
•
Filing: 1948-04-02
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Granted: 1952-03-11
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Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 Elliot M Staples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/14; H04B7/15; H04B7/185; H04B7/18502
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1522919A
Cited
US1894019A
Cited
US2070866A
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US2213105A
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US2393291A
Cited
US2469555A
Cited
US2490061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |