US3794590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel dry cleaning mixture
Assignee: Honeywell International Inc
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Filing: 1971-06-29
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Granted: 1974-02-26
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Expires: 1991-06-29
Abstract
Abstract MIXTURES COMPRISING WATERY, TERTIARY ARMYL ALCOHOL AND TETRACHLORODIFLUOROETHANE WHICH, OVER SUBSTANTIALLY THE ENTIRE COURSE OF THEIR EVAPORATION OR DISTILLATION, FORM AZEOTROPIC NON-FLAMMABLE VAPORS CONTAINING TERTIARYL AMYL ALCOHOL AND TETRACHLORODIFLUOROETHANE. THESE MIXTURES ARE USEFUL IN DRY CLEANING TEXTILE FABRICS AND FIBERS WITH REDUCED HAZARD OF FIRE.
Inventors
- 👤 O Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:49
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/5068; C11D7/5077; C11D7/5081; C11D7/5086; D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |