US3414423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for erasing and regenerating thermographic materials
Assignee: Eastman Kodak Co
•
Filing: 1965-11-04
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Granted: 1968-12-03
•
Expires: 1985-11-04
Abstract
No abstract record available.
Inventors
- 👤 Scheuring S Fierke
- 👤 Goldman Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:21
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR ERASING AND REGENERATING THERMOGRAPHIC COPYING SHEETS CONTNAINING AN IMAGE AREA OF A COMPLEX FORMED FROM QUINONE AND DIHYDROXYBENZENE COMPONENTS COMPRISING (A) DISSOCIATING THE COMPLEX INTO THE CORRESPONDING QUINONE AND DIHYDROXYBENZENE PRODUCTS BY SUBJECTING THE COMPLEX TO AN ORGANIC SOLVENT AND (B) SUBSTANTIALLY REMOVING THE ORGANIC SOLVENT FROM THE COPYING SHEET.
Claim 2
Dependent Claim
53 words
A PROCESS FOR ERASING AND REGENERATING THERMOGRAPHIC COPYING SHEETS CONTNAINING AN IMAGE AREA OF A COMPLEX FORMED FROM QUINONE AND DIHYDROXYBENZENE COMPONENTS COMPRISING (A) DISSOCIATING THE COMPLEX INTO THE CORRESPONDING QUINONE AND DIHYDROXYBENZENE PRODUCTS BY SUBJECTING THE COMPLEX TO AN ORGANIC SOLVENT AND (B) SUBSTANTIALLY REMOVING THE ORGANIC SOLVENT FROM THE COPYING SHEET.
References Cited (Backward Citations)
US2695245A
Cited
US3265518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |