US2532140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coating paper
Assignee: Minnesota and Ontario Paper Co
•
Filing: 1943-11-24
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Granted: 1950-11-28
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Expires: 1963-11-24
Abstract
No abstract record available.
Inventors
- 👤 William H Barrett
- 👤 Bernard K Asdell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:33
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; D21H5/00; D21H5/0005; D21H5/0025; D21H5/003
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A METHOD OF APPLYING MINERAL COATING OF A SOLIDS CONTENT OF ABOUT 61% TO ABOUT 72% TO A FAST MOVING WEB OF PAPER HAVING A MOISTURE CONTENT OF ABOUT 2% TO ABOUT 10%, COMPRISING APPLYING THE MINERAL COATING TO A ROTATABLE RESILIENT SURFACE, TRANSFERRING THE COATING ON THE RESILIENT SURFACE TO THE WEB OF PAPER, CARRYING THE WEB OF PAPER IN CONTACT WITH A HEATED SUPPORTING SURFACE FOR A PORTION OF THE SURFACE OF THE SAID SUPPORTING SURFACE, AND REDISTRIBUTING THE MOISTURE CONTENT OF THE COATED WEB OF PAPER WHILE ON THE SAID SUPPORTING SURFACE BY MEANS OF A MOVING FELT AFTER THE COATING HAS RECEIVED A PRELIMINARY SET.
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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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |