Patent EP0278038A1 successfully refreshed from Google Patents.
US2689882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone terminal equipment
Assignee: Motorola Solutions Inc
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Filing: 1949-11-17
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Granted: 1954-09-21
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Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth N Bergan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:54
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1624506A
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US2263633A
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US2315050A
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US2333992A
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US2299487A
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US2371397A
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US2349870A
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US2413296A
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US2383908A
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US2457434A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |