Patent US3164484A successfully refreshed from Google Patents.
US3164484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive copying sheet
Assignee: Interchemical Corp
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Filing: 1962-01-16
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Granted: 1965-01-05
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Expires: 1982-01-16
Abstract
No abstract record available.
Inventors
- 👤 Donald J Lazzarini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:10
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/36; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A HEAT-SENSITIVE COPYING SHEET COMPRISING A NONMETALLIC SUPPORTING BASE AND A VISIBLY OPAQUE HEAT-SENSITIVE COATING OF CONTRASTING COLOR THEREON COMPRISING A THIN FILM OF A TRANSPARENT FILM-FORMING ORGANIC BINDER HAVING A DISPERSION THEREIN CONSISTING ESSENTIALLY OF PARTICLES OF A HYDRATED SALT SELECTED FROM THE GROUP CONSISTING OF HYDRATED ALUMINUM SULFATE, HYDRATED MONOBASIC CALCIUM PHOSPHATE, HYDRATED FERROUS SULFATE, HYDRATED MAGNESIUM ACETATE, HYDRATED SODIUM ACETATE AND HYDRATED POTASSIUM SODIUM TARTRATE FROM 3 TO 7 PARTS BY WEIGHT OF SAID HYDRATED SAOT BEING PRESENT FOR EACH PART OF THE BINDER.
Claim 2
Dependent Claim
87 words
A HEAT-SENSITIVE COPYING SHEET COMPRISING A NONMETALLIC SUPPORTING BASE AND A VISIBLY OPAQUE HEAT-SENSITIVE COATING OF CONTRASTING COLOR THEREON COMPRISING A THIN FILM OF A TRANSPARENT FILM-FORMING ORGANIC BINDER HAVING A DISPERSION THEREIN CONSISTING ESSENTIALLY OF PARTICLES OF A HYDRATED SALT SELECTED FROM THE GROUP CONSISTING OF HYDRATED ALUMINUM SULFATE, HYDRATED MONOBASIC CALCIUM PHOSPHATE, HYDRATED FERROUS SULFATE, HYDRATED MAGNESIUM ACETATE, HYDRATED SODIUM ACETATE AND HYDRATED POTASSIUM SODIUM TARTRATE FROM 3 TO 7 PARTS BY WEIGHT OF SAID HYDRATED SAOT BEING PRESENT FOR EACH PART OF THE BINDER.
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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |