US3192273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of methylchloroform
Assignee: PPG Industries Inc
•
Filing: 1961-08-14
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Granted: 1965-06-29
•
Expires: 1981-08-14
Abstract
No abstract record available.
Inventors
- 👤 William E Bissinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02861; C23G5/02877; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
METHYLCHLOROFORM CONTAINING IN STABLIZING CONCENTRATION 2-METHYL-3-BUTYN-2-OL, A 1 TO 8 CARBON ATOM ALKANOL AND 1,4-DIOXANE, THE INDIVIDUAL CONCENTRATION OF SAID 1,4-DIOXANE BEING BELOW THAT AT WHICH IT ALONE STABILIZES EFFECTIVELY THE METHYLCHLOROFORM.
Claim 2
Dependent Claim
32 words
METHYLCHLOROFORM CONTAINING IN STABLIZING CONCENTRATION 2-METHYL-3-BUTYN-2-OL, A 1 TO 8 CARBON ATOM ALKANOL AND 1,4-DIOXANE, THE INDIVIDUAL CONCENTRATION OF SAID 1,4-DIOXANE BEING BELOW THAT AT WHICH IT ALONE STABILIZES EFFECTIVELY THE METHYLCHLOROFORM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |