US3265747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methylchloroform compositions
Assignee: PPG Industries Inc
•
Filing: 1964-02-18
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Granted: 1966-08-09
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Expires: 1984-02-18
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
2026-10-26 08:21
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF A KETONE SELECTED FROM THE GROUP CONSISTING OF LOWER DIALKYL KETONES, ACETYL ACETONE, MESITYL OXIDE, PHORONE, CYCLOHEXANONE AND ACETOPHENONE
Claim 2
Dependent Claim
48 words
A METHYLCHLOROFORM COMPOSITION CONTAINING A STABILIZING CONCENTRATION OF A KETONE SELECTED FROM THE GROUP CONSISTING OF LOWER DIALKYL KETONES, ACETYL ACETONE, MESITYL OXIDE, PHORONE, CYCLOHEXANONE AND ACETOPHENONE AND AN ORGANIC EPOXIDE SELECTED FROM THE GROUP CONSISTING OF UNSUBSTITUTED EPOXIDES HAVING UP TO 8 CARBON ATOMS, GLYCIDOL AND EPICHLOROHYDRIN.
References Cited (Backward Citations)
US2811252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |