Patent US2664044A successfully refreshed from Google Patents.
US2664044A
Expired / Lapsed
US
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Electric signal recording blank
Assignee: Timefax Corp
•
Filing: 1948-01-16
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Granted: 1953-12-29
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Expires: 1968-01-16
Abstract
No abstract record available.
Inventors
- 👤 Harold R Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/24; B41M5/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2054389A
Cited
US2251742A
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US2104483A
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US2234621A
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US2239414A
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GB537067A
Cited
US2294149A
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US2498493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |