US3251891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized compositions
Assignee: PPG Industries Inc
•
Filing: 1962-01-18
•
Granted: 1966-05-17
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Expires: 1982-01-18
Abstract
No abstract record available.
Inventors
- 👤 Charles L Cormany
- 👤 William R Dial
- 👤 Blaine O Pray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:13
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
9 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF DIOXOLANE.
Claim 2
Dependent Claim
9 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF DIOXOLANE.
Claim 3
Dependent Claim
13 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF DIOXOLANE AND A LOWER ALKANOL.
Claim 4
Dependent Claim
13 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF DIOXOLANE AND A LOWER ALKANOL.
Claim 5
Dependent Claim
30 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF DIOXOLANE AND AN ORGANIC EPOXIDE SELETED FROM THE GROUP CONSISTING OF UNSUBSTITUTED EPOXIDES HAVING UP TO 8 CARBON ATOMS, GLYCIDOL AND EPICHLOROHYDRIN.
Claim 6
Dependent Claim
30 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF DIOXOLANE AND AN ORGANIC EPOXIDE SELETED FROM THE GROUP CONSISTING OF UNSUBSTITUTED EPOXIDES HAVING UP TO 8 CARBON ATOMS, GLYCIDOL AND EPICHLOROHYDRIN.
Claim 7
Dependent Claim
18 words
A STABILIZED COMPOSITION CONSISTING OF METHYLCHLOROFORM HAVING INCORPORATED THEREIN FROM 0.5 TO 5 PERCENT BY WEIGHT OF 1,3-DIOXOLANE.
Claim 8
Dependent Claim
18 words
A STABILIZED COMPOSITION CONSISTING OF METHYLCHLOROFORM HAVING INCORPORATED THEREIN FROM 0.5 TO 5 PERCENT BY WEIGHT OF 1,3-DIOXOLANE.
References Cited (Backward Citations)
US3008999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |