US3220846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of salts of readily decarboxylated acids in thermography, photography, photothermography and thermophotography
Assignee: Eastman Kodak Co
•
Filing: 1960-06-27
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Granted: 1965-11-30
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 John F Tinker
- 👤 John J Sagura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/61; G03C1/615; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/323; C; C07; C07C; C07C53/00; C07C53/15; C07C53/16; C07C53/18; C07C53/19; C07C53/21; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/18; C07D213/24; C07D213/26; C07D295/00; C07D295/02; C07D295/027; G03C1/005; G03C1/06; G03C1/42; Y; Y10; Y10S; Y10S430/00; Y10S430/145
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
A HEAT PROCESSABLE RADIANT-ENERGY SENSITIVE IMAGEFORMING LAYER CONTAINING: (A) A HEAT-SENSITIVE SALT COMPOUND OF A READILY DECARBOXYLATABLE COMPOUND BEING SELECTED FROM THOSE HAVING THE FORMULA:
Claim 2
Dependent Claim
25 words
A HEAT PROCESSABLE RADIANT-ENERGY SENSITIVE IMAGEFORMING LAYER CONTAINING: (A) A HEAT-SENSITIVE SALT COMPOUND OF A READILY DECARBOXYLATABLE COMPOUND BEING SELECTED FROM THOSE HAVING THE FORMULA:
Claim 3
Dependent Claim
29 words
A THERMOGRAPHIC ELEMENT COMPRISING A SUPPORT COATED WITH A THERMOGRAPHIC LAYER COMPRISING A HYDROPHILIC BINDER HAVING DISPERSED THEREIN: (1) A HETEROCYCLIC QUATERNARY SALT SELECTED FROM THOSE HAVING THE FORMULA:
Claim 4
Dependent Claim
29 words
A THERMOGRAPHIC ELEMENT COMPRISING A SUPPORT COATED WITH A THERMOGRAPHIC LAYER COMPRISING A HYDROPHILIC BINDER HAVING DISPERSED THEREIN: (1) A HETEROCYCLIC QUATERNARY SALT SELECTED FROM THOSE HAVING THE 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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |