Patent US3204543A successfully refreshed from Google Patents.
US3204543A
Expired / Lapsed
US
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Method and apparatus for producing a copy of an original
Assignee: Keuffel and Esser Co
•
Filing: 1963-05-21
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Granted: 1965-09-07
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Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 Andrew E O'keeffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:05
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/08; G03C5/10; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/22; G03B27/32; G03B27/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325198A
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US3125013A
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US3126809A
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US2198115A
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US2214072A
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US2823579A
Cited
US2930284A
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US3060805A
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US3060806A
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US3073234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |