Patent US2483449A successfully refreshed from Google Patents.
US2483449A
Expired / Lapsed
US
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Facsimile transmission system
Assignee: Western Union Telegraph Co
•
Filing: 1944-12-09
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Granted: 1949-10-04
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Expires: 1964-12-09
Abstract
No abstract record available.
Inventors
- 👤 Raleigh J Wise
- 👤 Garvice H Ridings
- 👤 Robert D Parrott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00567; H04N1/0057; H04N1/00588; H04N1/00599; H04N1/00602; H04N1/0061; H04N1/00665; H04N1/00668; H04N1/32; H04N1/327
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1848839A
Cited
US1747978A
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US2153574A
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US1993564A
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US2046328A
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US2255868A
Cited
US2175388A
Cited
US2212968A
Cited
US2255869A
Cited
US2214572A
Cited
US2326740A
Cited
US2334234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |