US2789935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing paper made with nylon scrap and apparatus
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1954-10-07
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Granted: 1957-04-23
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Expires: 1974-10-07
Abstract
No abstract record available.
Inventors
- 👤 Folson E Drummond
- 👤 Malvern J Hiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:49
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/30; Y; Y10; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A METHOD OF PRODUCING A FLEXIBLE SHEET OF PAPER HAVING A DECORATIVE FIBRAILATED SURFACE WHICH COMPRISES APPLYING A SOLUTION OF A FIBRILLOUS POLYAMIDE ONTO THE SURFACE OF A BODY OF WATER TO CAUSE SAID POLYAMIDE TO PRECIPITATE AS FIBRILS IN THE SELF-SUPPORTING FILM FLOATING ON THE SURFACE OF SAID BODY OF WATER, REMOVING SAID FILM BODILY FROM THE SURFACE OF THE WATER, TRANSFERRING SAID FILM TO A SUPPORTING PAPER SHEET, TRIMMING THE OUTER EDGES OF THE RESULTANT LAMINATED STRUCTURE TO PROVIDE A SHEET HAVING THE DESIRED WIDTH, AND HEATING THE RESULTANT TRIMMED SHEET TO FORM A FINISHED PAPER SHEET HAVING A FIBRILATED DECORATIVE SURFACE.
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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) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |