US2480332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making mixed glycerol esters of fatty and hydroxy acids
Assignee: EF Drew and Co Inc
•
Filing: 1946-12-27
•
Granted: 1949-08-30
•
Expires: 1966-12-27
Abstract
No abstract record available.
Inventors
- 👤 Lawrence L Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:32
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/04; C11C3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470714A
Cited
US1547571A
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US1505560A
Cited
US2236569A
Cited
US2266591A
Cited
US2329166A
Cited
US2322494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |