Patent US3809533A successfully refreshed from Google Patents.
US3809533A
Expired / Lapsed
US
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Ethoxyethanol,glycol,water dye solution
Assignee: Honeywell International Inc
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Filing: 1972-04-28
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Granted: 1974-05-07
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Expires: 1992-04-28
Abstract
Abstract A LIQUID SOLVENT COMPOSITION CONTAINING AN ORGANIC DYE, ESPECIALLY SUITABLE FOR SOLVENT DYEING OPERATIONS, COMPRISES 40-80 VOLUME PERCENT ALKOXYL ALKANOL, 5-40 VOLUME PERCENT OF AN ALKYLENE GLYCOL AND 2 TO 25 VOLUME PERCENT OF WATER.
Inventors
- 👤 F Sievenpiper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:16
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0083; D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/928
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |