Patent US3576591A successfully refreshed from Google Patents.
US3576591A
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Methylolated cyclic urea compositions containing sodium formate or sodium tetraborate
Assignee: Proctor Chemical Co Inc
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Filing: 1968-04-23
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Granted: 1971-04-27
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Expires: 1988-04-23
Abstract
Abstract THE CONVENTIONAL TREATMENT OF CELLULOSIC FABRICS WITH CYCLIC UREA CELLULOSE REACTIVE CREASE-PROOFING AGENTS TO PRODUCE DURABLE PRESS OR WASH-AND-WEAR PROPERTIES IS IMPROVED BY THE ADDITION OF A MINOR AMOUNT OF SODIUM FORMATE OR SODIUM TETRABORATE. THIS SALT ADDITION TO THE CREASE-PROOFING COMPOSITION REDUCES ADVERSE YELLOWING OR COLOR CHANGES CAUSED BY THE CONVENTIONAL TREATMENTS.
Inventors
- 👤 Michael R Cusano
- 👤 Robert D Featherston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:57
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |