US2541060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tone and density compensating device
Assignee: Faximile Inc
•
Filing: 1948-05-18
•
Granted: 1951-02-13
•
Expires: 1968-05-18
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hester
- 👤 John W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:55
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/20; H04N5/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2083245A
Cited
US1738315A
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US1988472A
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US2095717A
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US2136606A
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US2202629A
Cited
US2252752A
Cited
US2280303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |