Patent US5324324A successfully refreshed from Google Patents.
US3357784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure to intense ultraviolet light to improve characteristics of cellulosic fabrics in divinyl sulfone and glyoxal cross-linking processes
Assignee: Kendall Co
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Filing: 1964-09-30
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Granted: 1967-12-12
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Expires: 1984-09-30
Abstract
No abstract record available.
Inventors
- 👤 Andrew A Kasper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/272; D06M13/278; D06M10/00; D06M10/04; D06M10/08; D06M13/10; D06M13/12; D06M13/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS OF PRODUCING A CREASE-RESISTANT FINISH ON A CELLULOSIC FABRIC WHICH COMPRISES IMPREGNATING SAID FABRIC WITH A REACTANT SELECTED FROM THE GROUP CONSISTING OF GLYOXAL AND DIVINYL SULFONE CONTAINING A SENSITIZING AMOUNT OF GLYOXAL AND SUBJECTING THE IMPREGNATED FABRIC TO ULTRAVIOLET IRRADIATION OF AN INTENSITY OF AT LEAST 10**14 PHOTONS PER SQUARE CENTIMETER PER SECOND FOR A PERIOD OF FROM 4 TO 9 MINUTES.
Claim 2
Dependent Claim
65 words
A PROCESS OF PRODUCING A CREASE-RESISTANT FINISH ON A CELLULOSIC FABRIC WHICH COMPRISES IMPREGNATING SAID FABRIC WITH A REACTANT SELECTED FROM THE GROUP CONSISTING OF GLYOXAL AND DIVINYL SULFONE CONTAINING A SENSITIZING AMOUNT OF GLYOXAL AND SUBJECTING THE IMPREGNATED FABRIC TO ULTRAVIOLET IRRADIATION OF AN INTENSITY OF AT LEAST 10**14 PHOTONS PER SQUARE CENTIMETER PER SECOND FOR A PERIOD OF FROM 4 TO 9 MINUTES.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |