US2657259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile transmitter
Assignee: Western Union Telegraph Co
•
Filing: 1949-10-19
•
Granted: 1953-10-27
•
Expires: 1969-10-19
Abstract
No abstract record available.
Inventors
- 👤 John H Hackenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:13
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/0671; H04N1/0678; H04N1/08; H04N1/083; H04N1/0834; H04N1/0839; H04N1/32; H04N1/327
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2302827A
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US1059041A
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US1039066A
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US2255868A
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US2221078A
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US2315361A
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US2258124A
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US2469423A
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US2339133A
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US2496943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |