Patent US2475625A successfully refreshed from Google Patents.
US2540922A
Expired / Lapsed
US
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Facsimile phasing system
Assignee: George W Borg Corp
•
Filing: 1946-09-13
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Granted: 1951-02-06
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Expires: 1966-09-13
Abstract
No abstract record available.
Inventors
- 👤 Parker B Wickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1626731A
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US2045294A
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US1670375A
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US2075898A
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US2038375A
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US2120371A
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US2164038A
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US2275249A
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US2280688A
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US2326740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |