US3196038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the production of coated paper and the like
Assignee: Zellsloff Fabrik Waldhof AG
•
Filing: 1960-10-12
•
Granted: 1965-07-20
•
Expires: 1980-10-12
Abstract
No abstract record available.
Inventors
- 👤 Schoch Walter
- 👤 Hans G Deutscher
- 👤 Hirsch Siegfried
- 👤 Weiss Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:52
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/70; D21H23/72; D06; D06B; D06B15/00; D06B15/08; D06B15/085; D21H23/78; D21H25/00; D21H25/08; D21H5/00; D21H5/0005; D21H5/005; D21H5/0052; D21H5/006; D21H5/0062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A PROCESS FOR THE PRODUCTION OF COATED PAPER, BOARD AND LIKE FLEXIBLE MATERIAL WHICH COMPRISES ADVANCING A WEB OF FLEXIBLE CARRIER MATERIAL IN A PREDETERMINED PATH; APPLYING TO ONE SIDE OF THE WEB A DISPERSION SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYVINYL ACETATE, POLYVINYLIDENE CHLORIDE, ESTERS OF POLYACRYLIC ACID, POLYSTYRENE, POLYETHYLENE, PARAFFIN AND MIXTURES OF SUCH SUBSTANCES TO FORM A BASE COAT; EQUALIZING THE THICKNESS OF THE BASE COAT BY SUBJECTING THE TOP FACE OF THE BASE COAT TO THE ACTION OF AN AIR DOCTOR AND DRYING THE THUS EQUALIZED BASE COAT, SAID EQUALIZING AND DRYING BEING CARRIED OUT WITHOUT CONTACTING THE SURFACE OF SAID BASE COAT WITH ANY MECHANICAL EQUALIZING OR DRYING MEANS; APPLYING TO THE BASE COAT AT LEAST ONE SOFTER INTERMEDIATE COAT WHOSE THICKNESS IS LESS THAN THE THICKNESS OF THE BASE COAT BY COVERING THE BAES COAT WITH A DISPERSION SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYVINYL ACETATE, POLYVINYLIDENE CHLORIDE, ESTERS OF POLYACRYLIC ACID,
Claim 2
Dependent Claim
162 words
A PROCESS FOR THE PRODUCTION OF COATED PAPER, BOARD AND LIKE FLEXIBLE MATERIAL WHICH COMPRISES ADVANCING A WEB OF FLEXIBLE CARRIER MATERIAL IN A PREDETERMINED PATH; APPLYING TO ONE SIDE OF THE WEB A DISPERSION SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYVINYL ACETATE, POLYVINYLIDENE CHLORIDE, ESTERS OF POLYACRYLIC ACID, POLYSTYRENE, POLYETHYLENE, PARAFFIN AND MIXTURES OF SUCH SUBSTANCES TO FORM A BASE COAT; EQUALIZING THE THICKNESS OF THE BASE COAT BY SUBJECTING THE TOP FACE OF THE BASE COAT TO THE ACTION OF AN AIR DOCTOR AND DRYING THE THUS EQUALIZED BASE COAT, SAID EQUALIZING AND DRYING BEING CARRIED OUT WITHOUT CONTACTING THE SURFACE OF SAID BASE COAT WITH ANY MECHANICAL EQUALIZING OR DRYING MEANS; APPLYING TO THE BASE COAT AT LEAST ONE SOFTER INTERMEDIATE COAT WHOSE THICKNESS IS LESS THAN THE THICKNESS OF THE BASE COAT BY COVERING THE BAES COAT WITH A DISPERSION SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, POLYVINYL ACETATE, POLYVINYLIDENE CHLORIDE, ESTERS OF POLYACRYLIC ACID,
References Cited (Backward Citations)
US343387A
Cited
US981383A
Cited
US1985698A
Cited
US2130241A
Cited
US2081320A
Cited
US2325798A
Cited
US2513394A
Cited
US2776236A
Cited
US2874407A
Cited
US3020224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |