US2999035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sensitive reproduction sheet, method of making and method of using
Assignee: Keuffel and Esser Co
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Filing: 1959-03-04
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Granted: 1961-09-05
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Expires: 1979-03-04
Abstract
No abstract record available.
Inventors
- 👤 Sahler Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:14
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/027; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE MANUFACTURE OF A HEAT SENSITIVE REPRODUCTION MATERIAL WHICH COMPRISES APPLYING TO A SUPPORT A COATING CONSISTING OF AN N-SUBSTITUTED HEAVY METAL DITHIOCARBAMATE, THE HEAVY METAL BEING SELECTED FROM THE GROUP CONSISTING OF THE HEAVY METALS OF THE B-SUB-GROUPS AND THE TRANSITION GROUP VIII OF THE PERIODIC TABLE HAVING AN ATOMIC NUMBER OF AT LEAST 26 AND AT MOST 83, AND AT LEAST ONE HEAT SENSITIVE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SALTS OF AMINES AND AMMONIUM SALTS OF READILY HEAT-DECOMPOSABLE ACIDS.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE MANUFACTURE OF A HEAT SENSITIVE REPRODUCTION MATERIAL WHICH COMPRISES APPLYING TO A SUPPORT A COATING CONSISTING OF AN N-SUBSTITUTED HEAVY METAL DITHIOCARBAMATE, THE HEAVY METAL BEING SELECTED FROM THE GROUP CONSISTING OF THE HEAVY METALS OF THE B-SUB-GROUPS AND THE TRANSITION GROUP VIII OF THE PERIODIC TABLE HAVING AN ATOMIC NUMBER OF AT LEAST 26 AND AT MOST 83, AND AT LEAST ONE HEAT SENSITIVE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SALTS OF AMINES AND AMMONIUM SALTS OF READILY HEAT-DECOMPOSABLE ACIDS.
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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |