Patent US2938761A successfully refreshed from Google Patents.
US2938761A
Expired / Lapsed
US
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Facsimile stylus and damping mechanism
Assignee: Western Union Telegraph Co
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Filing: 1957-03-19
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Granted: 1960-05-31
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Expires: 1977-03-19
Abstract
No abstract record available.
Inventors
- 👤 Douglas M Zabriskie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:07
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511837A
Cited
US2639211A
Cited
US2568306A
Cited
US2741530A
Cited
US2719775A
Cited
US2742339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |