US2737622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous power supply apparatus for facsimile systems
Assignee: Western Union Telegraph Co
•
Filing: 1950-02-21
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Granted: 1956-03-06
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Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Jelinek
- 👤 Alfred A Steinmetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:50
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/36; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913; Y10S388/914; Y10S388/921; Y10S388/923; Y10S388/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB290298A
Cited
US1977256A
Cited
US2234919A
Cited
US2292630A
Cited
US2290231A
Cited
US2304702A
Cited
US2394436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |