US3397627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectrostatic copying machine
Assignee: AB Dick Co
•
Filing: 1965-05-21
•
Granted: 1968-08-20
•
Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 John V Bruning
- 👤 Robert C Patzke
- 👤 Jr William A Ghiselli
- 👤 John L Tregay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:06
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3044386A
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US3135180A
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US3083622A
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US3076392A
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US3183805A
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US3088386A
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US3115075A
Cited
US3195430A
Cited
US3181420A
Cited
US3206307A
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US3282177A
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US3330179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |