Patent US2934007A successfully refreshed from Google Patents.
US2934007A
Expired / Lapsed
US
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Duplicating machines
Assignee: Caribonum Ltd
•
Filing: 1958-05-27
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Granted: 1960-04-26
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Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Francis Frederick George
- 👤 Moulton Robert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:20
CPC Classifications
B; B41; B41L; B41L11/00; B41L11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US632619A
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US1281780A
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US1281781A
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US2112849A
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US2389848A
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US2398288A
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US2588917A
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US2755200A
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US2755203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |