US3368893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic method of preparing etchable printing plates
Assignee: Dow Chemical Co
•
Filing: 1964-08-14
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Granted: 1968-02-13
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Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 Walter L Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/32; C; C08; C08L; C08L63/00; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/0567; G03G5/08; G03G5/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3052540A
Cited
US2866768A
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US3231374A
Cited
US3132941A
Cited
US3170890A
Cited
US3142585A
Cited
US3106158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |