US3244753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process f-or manufacture cf acetals
Assignee: —
•
Filing: —
•
Granted: 1966-04-05
•
Expires: 1983-04-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:44
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/30; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
IN A PROCES FOR PREPARING SURFACE-ACTIVE ACETALS BY MIXING, AS TA CONDENSATION TEMPERATURE IN THE PRESENCE OF AN ACIDIC CATALYST, A NON-IONIC SURFACE-ACTIVE GLYCOL ETHER, CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
29 words
IN A PROCES FOR PREPARING SURFACE-ACTIVE ACETALS BY MIXING, AS TA CONDENSATION TEMPERATURE IN THE PRESENCE OF AN ACIDIC CATALYST, A NON-IONIC SURFACE-ACTIVE GLYCOL ETHER, CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
US2000252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |