US3016325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of combining water-insoluble additament with organic fibrous material
Assignee: Electro-Chem Fiber Seal Corp
•
Filing: 1955-11-01
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Granted: 1962-01-09
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Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 Donald K Pattilloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/03; D21H17/05; D21H17/12; D21H17/62; D21H23/00; D21H23/76; D21H23/765; D21H27/00; D21H27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE PROCESS OF COMBINING A WATER-INSOLUBLE ADDITAMENT WITH ORGANIC FIBROUS MAERIAL INVOLVING THE STEPS OF (A) PRETREATING A MECHANICAL AQUEOUS SUSPENSION OF AN ORGANIC FIBROUS MATERIAL WITH AN ORGANIC FIBER-ACTIVATING AGENT AND THEN (B) TREATING THE SO-ACTIVATED ORGANIC FIBROUS MATERIAL IN AN AQUEOUS ENVIRONMENT WITH AN AQUEOUS SUSPENSION OF A WATER-INSOLUBLE DISPERSION ADDITAMENT, THE IMPROVEMENT WHICH CONSISTWS IN PRETREATING SUCH SUSPENSION OF ORGANIC FIBROUS MATERIAL WITH AN ORGANIC FIBER-ACTIVATED AGENT CONTAINING A REACTIVE NITROGEN GROUP AND A GROUP CONTAINING A REACTIVE HYDROGEN, SAID AGENT BEING SELECTED FROM THE GROUP CONSISTING OF A CONDENSATION PRODUCT RESULTING FROM CONDENSATION OF THE REACTANTS CONSISTING ESSENTIALLY OF DICYANDIAMIDE AND FORMALDEHYDE, TETRAMETHYLOL-ACETYLENEDIUREA, POLYMERIZED IMINES, SALTS OR GRANIDINES CONTAINING THE GRANIDINE CATION
Claim 2
Dependent Claim
117 words
IN THE PROCESS OF COMBINING A WATER-INSOLUBLE ADDITAMENT WITH ORGANIC FIBROUS MAERIAL INVOLVING THE STEPS OF (A) PRETREATING A MECHANICAL AQUEOUS SUSPENSION OF AN ORGANIC FIBROUS MATERIAL WITH AN ORGANIC FIBER-ACTIVATING AGENT AND THEN (B) TREATING THE SO-ACTIVATED ORGANIC FIBROUS MATERIAL IN AN AQUEOUS ENVIRONMENT WITH AN AQUEOUS SUSPENSION OF A WATER-INSOLUBLE DISPERSION ADDITAMENT, THE IMPROVEMENT WHICH CONSISTWS IN PRETREATING SUCH SUSPENSION OF ORGANIC FIBROUS MATERIAL WITH AN ORGANIC FIBER-ACTIVATED AGENT CONTAINING A REACTIVE NITROGEN GROUP AND A GROUP CONTAINING A REACTIVE HYDROGEN, SAID AGENT BEING SELECTED FROM THE GROUP CONSISTING OF A CONDENSATION PRODUCT RESULTING FROM CONDENSATION OF THE REACTANTS CONSISTING ESSENTIALLY OF DICYANDIAMIDE AND FORMALDEHYDE, TETRAMETHYLOL-ACETYLENEDIUREA, POLYMERIZED IMINES, SALTS OR GRANIDINES CONTAINING THE GRANIDINE CATION
References Cited (Backward Citations)
CA471873A
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US1223480A
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US2492702A
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FR884560A
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US2407599A
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US2698793A
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US2769711A
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US2689228A
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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) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |