Patent US3018214A successfully refreshed from Google Patents.
US3018214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for wet-creping paper sheet
Assignee: Brown Co
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Filing: 1958-04-15
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Granted: 1962-01-23
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Expires: 1978-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Conrad T Waldie
- 👤 Walter L Hearn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:53
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN THE PROCESS OF WET-CREPING FRESHLY-FORMED UNSIZED PAPER SHEET WHICH COMPRISES TEMPORARILY ADHERING SAID WET SHEET TO A SMOOTH SURFACE, CREPING THE SHEET WHILE SCRAPING IT FROM SAID SURFACE, AND SUBSEQUENTLY DRYING SAID CREPED SHEET, THE STEP WHICH COMPRISES APPLYING TO SAID PAPER SHEET, PRIOR TO ITS ADHERENCE TO SAID SMOOTH SURFACE, FROM 0.005% TO 0.015% BY WEIGHT, BASED ON THE DRY WEIGHT OF THE PAPER FIBERS, OF A WATER-INSOLUBLE METAL SOAP.
Claim 2
Dependent Claim
72 words
IN THE PROCESS OF WET-CREPING FRESHLY-FORMED UNSIZED PAPER SHEET WHICH COMPRISES TEMPORARILY ADHERING SAID WET SHEET TO A SMOOTH SURFACE, CREPING THE SHEET WHILE SCRAPING IT FROM SAID SURFACE, AND SUBSEQUENTLY DRYING SAID CREPED SHEET, THE STEP WHICH COMPRISES APPLYING TO SAID PAPER SHEET, PRIOR TO ITS ADHERENCE TO SAID SMOOTH SURFACE, FROM 0.005% TO 0.015% BY WEIGHT, BASED ON THE DRY WEIGHT OF THE PAPER FIBERS, OF A WATER-INSOLUBLE METAL SOAP.
References Cited (Backward Citations)
US1566690A
Cited
US1390276A
Cited
US1534482A
Cited
US1863813A
Cited
US1975286A
Cited
US1893717A
Cited
US1913017A
Cited
US1958202A
Cited
US2077438A
Cited
US2114701A
Cited
US2447064A
Cited
USRE23637E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |