US2559389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing precision images
Assignee: Keuffel and Esser Co
•
Filing: 1947-12-24
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Granted: 1951-07-03
•
Expires: 1967-12-24
Abstract
No abstract record available.
Inventors
- 👤 Allan R A Beeber
- 👤 David D Jacobus
- 👤 Carl W Keuffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:06
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/54; G03F1/58; G03F7/00; G03F7/0005; H; H05; H05K; H05K3/00; H05K3/02; H05K3/04; H05K3/046; H05K3/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US154032A
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US2279567A
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US1857929A
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US1994483A
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US2204147A
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US2239452A
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US2332003A
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US2447836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |