US3128315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methylchloroform stabilized with dialkylethers of alkylene glycols
Assignee: PPG Industries Inc
•
Filing: 1961-03-13
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Granted: 1964-04-07
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Donald E Hardies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:26
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
15 words
METHYLCHLOROFORM CONTAINING A STABILIZING CONCENTRATION OF A DIALKYL ETHER OF A DIOL HAVING THE FORMULA:
Claim 2
Dependent Claim
15 words
METHYLCHLOROFORM CONTAINING A STABILIZING CONCENTRATION OF A DIALKYL ETHER OF A DIOL HAVING THE FORMULA:
References Cited (Backward Citations)
US2088085A
Cited
US2272470A
Cited
US2407405A
Cited
US2371645A
Cited
GB765522A
Cited
US2870094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |