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Patent US2758503A successfully refreshed from Google Patents.
US2758503A
Expired / Lapsed
US
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Copy-holding apparatus
Assignee: Xerox Corp
•
Filing: 1953-03-05
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Granted: 1956-08-14
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Expires: 1973-03-05
Abstract
No abstract record available.
Inventors
- 👤 Lionel E Luffman
- 👤 Robert W Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:56
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1141704A
Cited
US1209419A
Cited
US1214132A
Cited
US1946810A
Cited
FR863452A
Cited
US2484809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |