US2695846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developing of diazo and azide sensitized colloids
Assignee: Konica Minolta Graphic Imaging USA Inc
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Filing: 1952-11-04
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Granted: 1954-11-30
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Expires: 1972-11-04
Abstract
No abstract record available.
Inventors
- 👤 John P Mally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:34
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN THE PROCESS OF DEVELOPING WITH WATER AN EXPOSED SHEET OF COLLOIDAL SUBSTANCE CAPABLE OF BEING TANNED SENSITIZED WITH A TANNING COMPOUND CONTAINING THE -N:NGROUP WHICH IS DECOMPOSED ON EXPOSURE TO LIGHT TO RELEASE NITROGEN GAS, THE STEP OF SUBJECTING THE EXPOSED SHEET TO A SURFACE TREATMENT WITH A RELATIVELY PURE MONOHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL, PRIOR TO THE WETTING OF THE SHEET WITH WATER.
Claim 2
Dependent Claim
71 words
IN THE PROCESS OF DEVELOPING WITH WATER AN EXPOSED SHEET OF COLLOIDAL SUBSTANCE CAPABLE OF BEING TANNED SENSITIZED WITH A TANNING COMPOUND CONTAINING THE -N:NGROUP WHICH IS DECOMPOSED ON EXPOSURE TO LIGHT TO RELEASE NITROGEN GAS, THE STEP OF SUBJECTING THE EXPOSED SHEET TO A SURFACE TREATMENT WITH A RELATIVELY PURE MONOHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF METHANOL AND ETHANOL, PRIOR TO THE WETTING OF THE SHEET WITH WATER.
References Cited (Backward Citations)
US2100063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |