US3576632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayered photographic processing web
Assignee: ELMER S BORNEMISZA
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Filing: 1967-04-28
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Granted: 1971-04-27
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Expires: 1987-04-28
Abstract
Abstract A PHOTOPROCESSING WEB IN WHICH DEVELOPING AN STABILIZING AGENTS ARE SEPARATED BY AN AMIDE-SOLUBLE ORGANIC POLYMER BARRIER, THE WEB INCLUDING AN AMIDE HAVING A MELTING POINT OF ABOUT 40-95*C. WHICH WHEN HEATED TO LIQUEFACTION, DISSOLVES THE POLYMER BARRIER THEREBY RELEASING THE AGENTS.
Inventors
- 👤 Elmer S Bornemisza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |