US3256138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Application of resin particles to a wet fibrous ply in forming a multi-ply water-laid web
Assignee: JOHN A MANNING PAPER CO Inc
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Filing: 1965-02-08
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Granted: 1966-06-14
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Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 James T Welch
- 👤 Louis R Busche
- 👤 Charles E Lanyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21F; D21F11/00; D21F11/06; D21F11/08; D21H19/00; D21H19/10; D21H19/14; D21H23/00; D21H23/02; D21H23/22; D21H23/24; D21H23/26; D21H23/28; D21H27/00; D21H27/30; D21H27/32; D21H27/34; D21H27/36; D21H11/00; D21H11/02; D21H11/04; D21H11/12; D21H13/00; D21H13/10; D21H13/20; D21H13/24; D21H13/36; D21H13/38; D21H13/40; D21H13/44; D21H21/00; D21H21/50; D21H21/52; D21H23/50; D21H23/52; D21H23/56; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254; Y10T428/26; Y10T428/269
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
IN A PROCESS FOR THE MANMUFACTURE OF PAPER ON A PAPER MACHINE ARRANGED TO FORM A MULTIPLY WEB AND TO PRESS AND DRY THE COMPOSITE WEB, THE IMPROVEMENT OF ADDING WATER-INSOLUBLE RESIN PARTICLES WITH EFFECTIVE DIAMETERS RANGING FROM 10 TO 500 MICRONS BETWEEN THE PLIES AT THE WET END OF SAID PAPER MACHINE AND SUBJECTING SAID WEB TO PRESSURE AT THE DRY END OF SAID MACHINE TO CAUSE SAID PARTICLES TO FLOW TOGETHER AT THE INTERFACE BETWEEN SAID PLIES AND BOND TO SAID PLIES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |