US3041200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper and process for manufacture
Assignee: Champion Papers Inc
•
Filing: 1958-08-28
•
Granted: 1962-06-26
•
Expires: 1978-08-28
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:19
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/80; D21H19/84; D21H21/00; D21H21/14; D21H21/28; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/919; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A LITHOGRAPHIC PRINTING PAPER HAVING THE PROPERTIES OF HIGH BRIGHTNESS AND LOW OPACITY AND ONE COATED SURFACE FORMED BY THE PROCESS OF APPLYING A MINERAL COATING ON ONE SIDE THEREOF, APPLYING A DYE IN THE FORM OF AN AQUEOUS SOLUTION CONTAINING FROM 0.2% TO 0.015625% BY WEIGHT OF THE DYE TO THE OPPOSITE SIDE THEREOF, SAID DYE HAVING THE PROPERTY OF INCREASING OPACITY OF THE PAPER YET HAVING A MINIMUM ADVERSE EFFECT ON BRIGHTNESS AS MEASURED FROM THE COATED SURFACE OF THE PAPER, AND CALENDERING OF THE COATED, FINISHED PAPER TO IMPROVE THE PRINTING QUALITY OF THE COATED SURFACE THEREOF AND WHEREIN THE PAPER IS CHARACTERIZED IN THAT IT IS SUBSTANTIALLY FREE FROM FILLER MATERIALS.
Claim 2
Dependent Claim
115 words
A LITHOGRAPHIC PRINTING PAPER HAVING THE PROPERTIES OF HIGH BRIGHTNESS AND LOW OPACITY AND ONE COATED SURFACE FORMED BY THE PROCESS OF APPLYING A MINERAL COATING ON ONE SIDE THEREOF, APPLYING A DYE IN THE FORM OF AN AQUEOUS SOLUTION CONTAINING FROM 0.2% TO 0.015625% BY WEIGHT OF THE DYE TO THE OPPOSITE SIDE THEREOF, SAID DYE HAVING THE PROPERTY OF INCREASING OPACITY OF THE PAPER YET HAVING A MINIMUM ADVERSE EFFECT ON BRIGHTNESS AS MEASURED FROM THE COATED SURFACE OF THE PAPER, AND CALENDERING OF THE COATED, FINISHED PAPER TO IMPROVE THE PRINTING QUALITY OF THE COATED SURFACE THEREOF AND WHEREIN THE PAPER IS CHARACTERIZED IN THAT IT IS SUBSTANTIALLY FREE FROM FILLER MATERIALS.
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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) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |