US2542152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal inverter for facsimile recording
Assignee: TIMES FACSIMILE Corp
•
Filing: 1947-10-21
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Granted: 1951-02-20
•
Expires: 1967-10-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:48
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1849865A
Cited
US1822000A
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US1979484A
Cited
US2415229A
Cited
US2388769A
Cited
US2442561A
Cited
US2490025A
Cited
US2469860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |