US3178306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic copying sheet and heat sensitive composition
Assignee: Orchard Paper Co
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Filing: 1962-04-12
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Granted: 1965-04-13
•
Expires: 1982-04-12
Abstract
No abstract record available.
Inventors
- 👤 Wark Homer Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:54
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/32; C; C07; C07F; C07F3/00; C07F3/10; C07F5/00; C07F7/00; C07F7/22; C07F7/2208; C07F7/30; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/165; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A HEAT-SENSITIVE SHEET COMPRISING A BASE SHEET CARRYING A COATING OF A HEAT-SENSITIVE COMPOSITION COMPRISING A FILM-FORMING BINDER IN WHICH THERE IS DISPERSED THE REACTION PRODUCT OF (I) A GRIGNARD-TYPE ORGANOMETALLIC COMPOUND HAVING THE STRUCTURE (R)Y-M-(X)Z, IN WHICH R IS A SUBSTITUTENT SELECTED FROM THE GROUP CONSISTING OF ARYL AND ALKYL RADICALS, M IS A METAL OF THE GROUP CONSISTING OF BISMUTH, CHROMIUM, GALLIUM, GERMANIUM, IRON, LEAD, MERCURY, TELLURIUM AND TIN, X IS AN ANION SUBSTITUENT, Y AND Z EACH IS AN INTEGER AND Y+Z=THE VALENCE OF THE METAL, AND (II) A SULFUR COMPOUND OF THE GROUP CONSISTING OF ALKYL AND ARYL XANTHATES, ALKYL AND ARYL THIURAM SULFIDES, THIUREA, ALKYL AND ARYL SUBSTITUTED THIOUREA, THIOAMIDES, AND ALKYL AND ARYL SUBSTITUTED THIOAMIDES.
Claim 2
Dependent Claim
121 words
A HEAT-SENSITIVE SHEET COMPRISING A BASE SHEET CARRYING A COATING OF A HEAT-SENSITIVE COMPOSITION COMPRISING A FILM-FORMING BINDER IN WHICH THERE IS DISPERSED THE REACTION PRODUCT OF (I) A GRIGNARD-TYPE ORGANOMETALLIC COMPOUND HAVING THE STRUCTURE (R)Y-M-(X)Z, IN WHICH R IS A SUBSTITUTENT SELECTED FROM THE GROUP CONSISTING OF ARYL AND ALKYL RADICALS, M IS A METAL OF THE GROUP CONSISTING OF BISMUTH, CHROMIUM, GALLIUM, GERMANIUM, IRON, LEAD, MERCURY, TELLURIUM AND TIN, X IS AN ANION SUBSTITUENT, Y AND Z EACH IS AN INTEGER AND Y+Z=THE VALENCE OF THE METAL, AND (II) A SULFUR COMPOUND OF THE GROUP CONSISTING OF ALKYL AND ARYL XANTHATES, ALKYL AND ARYL THIURAM SULFIDES, THIUREA, ALKYL AND ARYL SUBSTITUTED THIOUREA, THIOAMIDES, AND ALKYL AND ARYL SUBSTITUTED THIOAMIDES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |