Patent US3100726A successfully refreshed from Google Patents.
US3100726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the removal of unfixed developer powder from powdered electro-photographic reproduction coatings
Assignee: Azoplate Corp
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Filing: 1960-06-16
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Granted: 1963-08-13
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Expires: 1980-06-16
Abstract
No abstract record available.
Inventors
- 👤 Tomanek Martha
- 👤 Neugebauer Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:38
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G5/00; G03G5/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR THE REMOVAL OF UNFIXED POWDER DEVELOPER FROM POWDERED ELECTROPHOTOGRAPHIC REPRODUCTION COATINGS WHICH COMPRISES TREATING THE COATING WITH A MIXTURE OF FINELY DIVIDED KIESELGUHR AND FINELY DIVIDED ETHERIFIED CELLULOSE.
Claim 2
Dependent Claim
31 words
A PROCESS FOR THE REMOVAL OF UNFIXED POWDER DEVELOPER FROM POWDERED ELECTROPHOTOGRAPHIC REPRODUCTION COATINGS WHICH COMPRISES TREATING THE COATING WITH A MIXTURE OF FINELY DIVIDED KIESELGUHR AND FINELY DIVIDED ETHERIFIED CELLULOSE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |