US2568288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating paper
Assignee: Champion Paper and Fibre Co
•
Filing: 1948-04-30
•
Granted: 1951-09-18
•
Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 William J Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:34
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/46; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN THE PROCESS OF MAKING CAST SURFACED COATED PAPER WHEREIN AN AQUEOUS COATING COMPOSITION COMPRISING ADHESIVE AND INSOLUBLE FILLER WHICH IS ADHERENT TO A FINISHED CASTING SURFACE WHILE PLASTIC IS SET TO A NON-PLASTIC CONDITION WHILE IMMOVABLY ADHERING TO SAID CASTING SURFACE, THE IMPROVEMENT WHICH COMPRISES MAINTAINING ON SAID CASTING SURFACE AN INVISIBLE CONTINUOUS FILM OF OLEAGINOUS MATERIAL OF A THICKNESS SUBSTANTIALLY LESS THAN 2000 ANGSTROM UNITS AND INSUFFICIENT TO INTERFERE WITH THE ADHERENCE OF THE COATING TO THE CASTING SURFACE WHILE THE COATING IS WET BUT OF A THICKNESS AND CONTINUITY SUFFICIENT TO EFFECT A CLEAN SEPARATION OF THE DRIED COATING FROM THE CASTING SURFACE.
Claim 2
Dependent Claim
106 words
IN THE PROCESS OF MAKING CAST SURFACED COATED PAPER WHEREIN AN AQUEOUS COATING COMPOSITION COMPRISING ADHESIVE AND INSOLUBLE FILLER WHICH IS ADHERENT TO A FINISHED CASTING SURFACE WHILE PLASTIC IS SET TO A NON-PLASTIC CONDITION WHILE IMMOVABLY ADHERING TO SAID CASTING SURFACE, THE IMPROVEMENT WHICH COMPRISES MAINTAINING ON SAID CASTING SURFACE AN INVISIBLE CONTINUOUS FILM OF OLEAGINOUS MATERIAL OF A THICKNESS SUBSTANTIALLY LESS THAN 2000 ANGSTROM UNITS AND INSUFFICIENT TO INTERFERE WITH THE ADHERENCE OF THE COATING TO THE CASTING SURFACE WHILE THE COATING IS WET BUT OF A THICKNESS AND CONTINUITY SUFFICIENT TO EFFECT A CLEAN SEPARATION OF THE DRIED COATING FROM THE CASTING SURFACE.
References Cited (Backward Citations)
US1719166A
Cited
US2331922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |