US3083622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic apparatus
Assignee: Robertson Photo-Mechanix Inc
•
Filing: 1959-06-12
•
Granted: 1963-04-02
•
Expires: 1979-06-12
Abstract
No abstract record available.
Inventors
- 👤 Keller Daniel Franklin
- 👤 Jr William R Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:57
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB723534A
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US1909939A
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US1952100A
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US2690394A
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US2630743A
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US2914996A
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US2790082A
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US2961932A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |