Patent US2745494A successfully refreshed from Google Patents.
US2745494A
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US
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Jacquard card duplicating machine
Assignee: Individual
•
Filing: 1952-03-07
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Granted: 1956-05-15
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Expires: 1972-03-07
Abstract
No abstract record available.
Inventors
- 👤 Gustav A Boettcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:59
CPC Classifications
D; D03; D03C; D03C17/00; Y; Y10; Y10T; Y10T83/00; Y10T83/081; Y10T83/444; Y10T83/4622; Y10T83/4625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1732982A
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US825303A
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US1021049A
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US2062298A
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US2078800A
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US2180058A
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US2179517A
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US2599213A
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US2552942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |