Patent US3595602A successfully refreshed from Google Patents.
US3595602A
Expired / Lapsed
US
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Novel fiber reactive ultraviolet light absorbers and their use in cellulose textile materials
Assignee: Wyeth Holdings LLC
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Filing: 1970-04-06
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Granted: 1971-07-27
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Expires: 1990-04-06
Abstract
Abstract THIS INVENTION RELATES TO NEW MONO-AROMATIC-PENTA-ALKYL ETHERS OF HEXAMETHYLOLMELAMINE AND TO THEIR USE IN IMPARTING CREASE-RESISTIANCE TO CELLULOSIC TEXTILE MATERIALS. THE NEW ETHERS OF HEXAMETHYLOLMELAMINE IMPART CREASERESISTANACE TO CELLULOSIC TEXTILE MATERIALS WITHOUT ANY ADVERSE EFFECT ON THE LIGHT-FASTNESS OF SUCH MATERIALS THAT HAVE BEEN DYED WITH DIRECT DYES.
Inventors
- 👤 John Christian Oppelt
- 👤 Frederic Houghton Megson
- 👤 Michael Thomas Beachem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:49
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |