US2861008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of light-sensitive material for diazotypes
Assignee: Frederick Post Co
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Filing: 1953-12-14
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Granted: 1958-11-18
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Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Walter G Hollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:02
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE METHOD WHICH COMPRISES FORMING ON A TRANSFER SURFACE A PENETRATING FLUID FILM CONTAINING ESSENTIALLY A FLUID VEHICLE AND NORMALLY SOLID CONTENT DISPERSED IN SAID VEHICLE INCLUDING ESSENTIALLY LIGHT-SENSITIVE DIAZO COMPOUND CAPABLE OF DECOMPOSITION BY ACTINIC LIGHT AND CAPABLE OF UNION WITH A COUPLING AGENT TO FORM A DYE, THE TRANSFER SURFACE BEING WETTABLE BY AND NONABSORPTIVE OF SAID FLUID, TRANSFERRING THE CONTENTS OF SAID FILM TO A BODY HAVING A RECEIVING SURFACE BY BRINGING THE FILM ON THE TRANSFER SURFACE INTO CONTACT WITH THE RECEIVING SURFACE AND THEN SEPARATING THE SAID TWO SURFACES WHILE MAINTAINING THE CONTACTING PORTIONS OF SAID TWO SURFACES STATIONARY RELATIVE TO EACH OTHER DURING SAID CONTACT, THE MATERIAL OF THE BODY PROVIDING SAID RECEIVING SURFACE BEING ABSORPTIVE OF SAID FLUID WHEREBY TO REMOVE THE FILM FROM SAID TRANSFER SURFACE AND TO DEPOSIT SAID LIGHT-SENSITIVE COMPOUND WITHIN THE BODY AND IN THE VICINITY OF THE RECEIVING SURFACE.
Claim 2
Independent Claim
151 words
THE METHOD WHICH COMPRISES FORMING ON A TRANSFER SURFACE A PENETRATING FLUID FILM CONTAINING ESSENTIALLY A FLUID VEHICLE AND NORMALLY SOLID CONTENT DISPERSED IN SAID VEHICLE INCLUDING ESSENTIALLY LIGHT-SENSITIVE DIAZO COMPOUND CAPABLE OF DECOMPOSITION BY ACTINIC LIGHT AND CAPABLE OF UNION WITH A COUPLING AGENT TO FORM A DYE, THE TRANSFER SURFACE BEING WETTABLE BY AND NONABSORPTIVE OF SAID FLUID, TRANSFERRING THE CONTENTS OF SAID FILM TO A BODY HAVING A RECEIVING SURFACE BY BRINGING THE FILM ON THE TRANSFER SURFACE INTO CONTACT WITH THE RECEIVING SURFACE AND THEN SEPARATING THE SAID TWO SURFACES WHILE MAINTAINING THE CONTACTING PORTIONS OF SAID TWO SURFACES STATIONARY RELATIVE TO EACH OTHER DURING SAID CONTACT, THE MATERIAL OF THE BODY PROVIDING SAID RECEIVING SURFACE BEING ABSORPTIVE OF SAID FLUID WHEREBY TO REMOVE THE FILM FROM SAID TRANSFER SURFACE AND TO DEPOSIT SAID LIGHT-SENSITIVE COMPOUND WITHIN THE BODY AND IN THE VICINITY OF THE RECEIVING SURFACE.
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |