US2672503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and apparatus for facsimile telegraph transmission and recording
Assignee: Western Union Telegraph Co
•
Filing: 1948-02-07
•
Granted: 1954-03-16
•
Expires: 1968-02-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Hallden
- 👤 Garvice H Ridings
- 👤 Douglas M Zabriskie
- 👤 Robert D Parrott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:27
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00567; H04N1/00665; H04N1/00676; H04N1/04; H04N1/06; H04N1/08; H04N1/083; H04N1/0873; H04N1/0886; H04N1/32
Claims Analysis
Total Claims: 0
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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) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |