US2676118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting support and process of manufacturing same
Assignee: Warren SD Co
•
Filing: 1950-02-08
•
Granted: 1954-04-20
•
Expires: 1970-02-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:15
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/03; B29C48/07; B29C48/08; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/277
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
PROCESS FOR THE PRODUCTION OF A CASTING SUPPORT FOR THE PRODUCTION OF SHEETS OF THERMOPLASTIC FILM-FORMING MATERIALS WHICH COMPRISES APPLYING TO A PAPER BODY STOCK A BASE COATING OF AN AQUEOUS COATING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 1 TO ABOUT 6 PARTS BY WEIGHT OF PIGMENT AND ABOUT 1 PART BY WEIGHT OF HYDROPHILIC ADHESIVE, SAID COATING AMOUNTING TO FROM ABOUT 2 TO ABOUT 12 POUNDS OF SOLIDS PER SIDE PER REAM OF BODY STOCK, AT LEAST PARTIALLY DRYING SAID COATING AND SUPERCALENDERING THE AT LEAST PARTIALLY DRIED COATING, APPLYING TO SAID BASE COATING A TOP COATING OF AN AQUEOUS COATING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 0.2 TO ABOUT 2 PARTS BY WEIGHT OF PIGMENT, FROM ABOUT 0.2 TO ABOUT 1 PART BY WEIGHT OF ORGANIC HUMECTANT AND ABOUT 1 PART BY WEIGHT OF METHYL CELLULOSE, SAID TOP COATING AMOUNTING TO FROM ABOUT 3.5 TO ABOUT 10.5 POUNDS OF SOLIDS INCLUDING HUMECTANT PER SIDE PER REAM, AT LEAST PARTIALLY DRYING SAID TOP COATING AND SUPERCALENDERING SAID AT LEAST PARTIALLY DRIED TOP COATING.
Claim 2
Dependent Claim
174 words
PROCESS FOR THE PRODUCTION OF A CASTING SUPPORT FOR THE PRODUCTION OF SHEETS OF THERMOPLASTIC FILM-FORMING MATERIALS WHICH COMPRISES APPLYING TO A PAPER BODY STOCK A BASE COATING OF AN AQUEOUS COATING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 1 TO ABOUT 6 PARTS BY WEIGHT OF PIGMENT AND ABOUT 1 PART BY WEIGHT OF HYDROPHILIC ADHESIVE, SAID COATING AMOUNTING TO FROM ABOUT 2 TO ABOUT 12 POUNDS OF SOLIDS PER SIDE PER REAM OF BODY STOCK, AT LEAST PARTIALLY DRYING SAID COATING AND SUPERCALENDERING THE AT LEAST PARTIALLY DRIED COATING, APPLYING TO SAID BASE COATING A TOP COATING OF AN AQUEOUS COATING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 0.2 TO ABOUT 2 PARTS BY WEIGHT OF PIGMENT, FROM ABOUT 0.2 TO ABOUT 1 PART BY WEIGHT OF ORGANIC HUMECTANT AND ABOUT 1 PART BY WEIGHT OF METHYL CELLULOSE, SAID TOP COATING AMOUNTING TO FROM ABOUT 3.5 TO ABOUT 10.5 POUNDS OF SOLIDS INCLUDING HUMECTANT PER SIDE PER REAM, AT LEAST PARTIALLY DRYING SAID TOP COATING AND SUPERCALENDERING SAID AT LEAST PARTIALLY DRIED TOP COATING.
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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |