US3079271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive sheet record material and method of making
Assignee: Honeywell International Inc
•
Filing: 1959-07-22
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Granted: 1963-02-26
•
Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Kranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:34
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; Y; Y10; Y10S; Y10S428/00; Y10S428/918; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/26; Y10T428/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
PRESSURE-SENSITIVE SHEET RECORD MATERIAL COMPRISING A BASE SHEET, AN INTERMEDIATE COATING OF OPAQUE SOLID ELECTRON ACCEPTOR MATERIAL HAVING ITS SURFACE COLORED BY REACTION WITH AN ELECTRON DONOR CHROMOGENIC MATERIAL AND A SUBSTANTIAL SUBSURFACE LAYER FREE FROM SUCH COLORING, SAID SUBSURFACE LAYER PREVENTING THE COLOR OF THE COLORED SURFACE FROM SHOWING THROUGH THE BASE SHEET, AND AN OUTER COATING FORMED OF NORMALLY OPAQUE PRESSURE-SENSI-
Claim 2
Dependent Claim
63 words
PRESSURE-SENSITIVE SHEET RECORD MATERIAL COMPRISING A BASE SHEET, AN INTERMEDIATE COATING OF OPAQUE SOLID ELECTRON ACCEPTOR MATERIAL HAVING ITS SURFACE COLORED BY REACTION WITH AN ELECTRON DONOR CHROMOGENIC MATERIAL AND A SUBSTANTIAL SUBSURFACE LAYER FREE FROM SUCH COLORING, SAID SUBSURFACE LAYER PREVENTING THE COLOR OF THE COLORED SURFACE FROM SHOWING THROUGH THE BASE SHEET, AND AN OUTER COATING FORMED OF NORMALLY OPAQUE PRESSURE-SENSI-
References Cited (Backward Citations)
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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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |