US2962382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet recording material and method of making same
Assignee: Ludlow Corp
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Filing: 1958-02-25
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Granted: 1960-11-29
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Expires: 1978-02-25
Abstract
No abstract record available.
Inventors
- 👤 Robert S Ives
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:07
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; Y; Y10; Y10S; Y10S428/00; Y10S428/918; Y10S8/00; Y10S8/916; Y10S8/919; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
SHEET RECORDING MATERIAL COMPRISING A BACKING HAVING AN OPPOSITE BLUSHED COATING OF AN APPEARANCE CONTRASTING WITH THAT OF THE BACKING, SAID COATING COMPRISIING A WATER-INSOLUBLE, FILM-FORMING, THERMOPLASTIC POLYMERIC MATERIAL TOGETHER WITH FROM ABOUT 20% TO 300%, BASED ON THE WEIGHT OF SAID POLYMERIC MATERIAL OF A SURFACE ACTIVE AGENT, AND FROM 4% TO 60% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF POLYMERIC MATERIAL, SURFACE ACTIVE AGENT, AND WAXY LUBRICANT, OF FINELY DIVIDED WAXY LUBRICANT HAVING A MELTING POINT ABOVE 100*C., SAID COAT ING BECOMING TRANSLUCENT WHEN SUBJECTED TO A HEMISPHERICAL STYLUS HAVING A DIAMETER OF 0.010 INCH UNDER A LOAD OF 3 TO 15 GRAMS TO REVEAL THE APPEARANCE OF THE BACKING CONTRASTING TO THAT OF SAID OPAQUE COATING.
Claim 2
Dependent Claim
120 words
SHEET RECORDING MATERIAL COMPRISING A BACKING HAVING AN OPPOSITE BLUSHED COATING OF AN APPEARANCE CONTRASTING WITH THAT OF THE BACKING, SAID COATING COMPRISIING A WATER-INSOLUBLE, FILM-FORMING, THERMOPLASTIC POLYMERIC MATERIAL TOGETHER WITH FROM ABOUT 20% TO 300%, BASED ON THE WEIGHT OF SAID POLYMERIC MATERIAL OF A SURFACE ACTIVE AGENT, AND FROM 4% TO 60% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF POLYMERIC MATERIAL, SURFACE ACTIVE AGENT, AND WAXY LUBRICANT, OF FINELY DIVIDED WAXY LUBRICANT HAVING A MELTING POINT ABOVE 100*C., SAID COAT ING BECOMING TRANSLUCENT WHEN SUBJECTED TO A HEMISPHERICAL STYLUS HAVING A DIAMETER OF 0.010 INCH UNDER A LOAD OF 3 TO 15 GRAMS TO REVEAL THE APPEARANCE OF THE BACKING CONTRASTING TO THAT OF SAID OPAQUE COATING.
References Cited (Backward Citations)
US2313810A
Cited
US2739909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |