Patent US2998344A successfully refreshed from Google Patents.
US2998344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet web binding process and product
Assignee: ST Regis Paper Co
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Filing: 1957-07-11
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Granted: 1961-08-29
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Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Willard E Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:39
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/28; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/51; D21H23/00; D21H23/02; D21H23/04; D21H23/06; D21H23/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR PRODUCING A NON-WOVEN FABRIC WEB CONSISTING ESSENTIALLY OF ORGANIC MAN-MADE FIBERS, WHICH COMPRISES SLURRYING SAID FIBERS WITH WATER, INCORPORATING AT LEAST ABOUT 8% BY WEIGHT OF THE DRY FIBERS OF A CARBOHYDRATE BINDING AGENT WITH SAID SLURRY, SUBSEQUENTLY INCORPORATING THEREWITH A CATIONIC BONDING RESIN CAPABLE OF FACILITATING SORPTION OF SAID BINDER ONTO SAID FIBERS COMPRISING A MELAMINE-FORMALDEHYDE PRECONDENSATE AND FEEDING THE RESULTING AQUEOUS MEDIUM TO A PAPERMAKING MACHINE.
Claim 2
Dependent Claim
71 words
A PROCESS FOR PRODUCING A NON-WOVEN FABRIC WEB CONSISTING ESSENTIALLY OF ORGANIC MAN-MADE FIBERS, WHICH COMPRISES SLURRYING SAID FIBERS WITH WATER, INCORPORATING AT LEAST ABOUT 8% BY WEIGHT OF THE DRY FIBERS OF A CARBOHYDRATE BINDING AGENT WITH SAID SLURRY, SUBSEQUENTLY INCORPORATING THEREWITH A CATIONIC BONDING RESIN CAPABLE OF FACILITATING SORPTION OF SAID BINDER ONTO SAID FIBERS COMPRISING A MELAMINE-FORMALDEHYDE PRECONDENSATE AND FEEDING THE RESULTING AQUEOUS MEDIUM TO A PAPERMAKING MACHINE.
References Cited (Backward Citations)
US2563897A
Cited
US2582840A
Cited
US2601598A
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US2685508A
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US2737179A
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US2943013A
Cited
US2930106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |