US2698259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of water finished board having an insolubilized protein-mineral coating t hereon
Assignee: Gardner Board and Carton Co
•
Filing: 1950-05-27
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Granted: 1954-12-28
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Expires: 1970-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Stanley W Trosset
- 👤 Harry C Fisher
- 👤 Holmes Simeon Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:18
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/80; D21H19/82; D21H19/36; D21H19/44; D21H19/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS OF MANUFACTURING A WEB OF COATED PAPER OR BOARD WHICH COMPRISES APPLYING TO THE SURFACE OF THE WEB A PLASTICIZABLE FILM FORMING WATER-BORNE SUBSTANCE CHEMICALLY INERT TO THE FIBERS OF THE WEB, AND PASSING THE WEB THROUGH A BREAKER STACK OF CALENDER ROLLS TO PLASTICALLY SMOOTH THE TREATED SURFACE, AND DURING A PERSISTENCE OF THE SAID PLASTICIZING EFFECT, IMPRINTING THEREON A THIN LAYER OF COATING COMPOSITION CONSISTING ESSENTIALLY OF MINERAL SUBSTANCE AND PROTEIN BINDER IN WATER, DRYING THE WEB, AND SUBJECTING IT TO A WATER FINISHING TREATMENT BY PASSING IT THROUGH A STACK OF METALLIC FINISHING CALENDER ROLLS AND APPLYING TO THE TREATED SURFACE OF THE WEB WHILE PASSING THROUGH SAID STACK A WATER SOLUTION OF AN INSOLUBILIZING SUBSTANCE FOR THE SAID PROTEIN.
Claim 2
Dependent Claim
125 words
A PROCESS OF MANUFACTURING A WEB OF COATED PAPER OR BOARD WHICH COMPRISES APPLYING TO THE SURFACE OF THE WEB A PLASTICIZABLE FILM FORMING WATER-BORNE SUBSTANCE CHEMICALLY INERT TO THE FIBERS OF THE WEB, AND PASSING THE WEB THROUGH A BREAKER STACK OF CALENDER ROLLS TO PLASTICALLY SMOOTH THE TREATED SURFACE, AND DURING A PERSISTENCE OF THE SAID PLASTICIZING EFFECT, IMPRINTING THEREON A THIN LAYER OF COATING COMPOSITION CONSISTING ESSENTIALLY OF MINERAL SUBSTANCE AND PROTEIN BINDER IN WATER, DRYING THE WEB, AND SUBJECTING IT TO A WATER FINISHING TREATMENT BY PASSING IT THROUGH A STACK OF METALLIC FINISHING CALENDER ROLLS AND APPLYING TO THE TREATED SURFACE OF THE WEB WHILE PASSING THROUGH SAID STACK A WATER SOLUTION OF AN INSOLUBILIZING SUBSTANCE FOR THE SAID PROTEIN.
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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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |