US3071464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic process
Assignee: Individual
•
Filing: 1958-08-01
•
Granted: 1963-01-01
•
Expires: 1978-08-01
Abstract
No abstract record available.
Inventors
- 👤 Chalkley Lyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:32
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/732
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
THE PHOTOGRAPHIC PROCESS COMPRISING THE STEPS OF RAISING THE TEMPERATURE OF A HIGH TEMPERATURE COEFFICIENT PRINTING-OUT COMPOSITION CONTAINING A NAPHTHALENE DERIVATIVE CHOSEN FROM THE GROUP CONSISTING OF THE CYANIDE OF A DEPHENYL-NAPHTHAYL-METHANE DYE AND SALICYLAL-B-NAPHTHYLAMINE COATED ONTO A SUPPORTING SURFACE TO ABOVE 60* C. AND BELOW THE MELTING POINT OF THE SAID NAPHTHALENE DERIVATIVE, AND EXPOSING SAID COATED SURFACE TO LIGHT WHILE MAINTAINED WITHIN SAID TEMPERATURE RANGE TO EFFECT THE FORMATION OF A VISIBLE IMAGE.
Claim 2
Dependent Claim
75 words
THE PHOTOGRAPHIC PROCESS COMPRISING THE STEPS OF RAISING THE TEMPERATURE OF A HIGH TEMPERATURE COEFFICIENT PRINTING-OUT COMPOSITION CONTAINING A NAPHTHALENE DERIVATIVE CHOSEN FROM THE GROUP CONSISTING OF THE CYANIDE OF A DEPHENYL-NAPHTHAYL-METHANE DYE AND SALICYLAL-B-NAPHTHYLAMINE COATED ONTO A SUPPORTING SURFACE TO ABOVE 60* C. AND BELOW THE MELTING POINT OF THE SAID NAPHTHALENE DERIVATIVE, AND EXPOSING SAID COATED SURFACE TO LIGHT WHILE MAINTAINED WITHIN SAID TEMPERATURE RANGE TO EFFECT THE FORMATION OF A VISIBLE IMAGE.
Claim 3
Dependent Claim
22 words
THE PROCESS OF CLAIM 1 WHEREIN SAID NAPHTHALENE DERIVATIVE IS THE CYANIDE OF NAPTHTHALENE GREEN V, COLOUR INDEX NO. 44025 OF FORMULA
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |