US2820802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fatty oil acid ester
Assignee: Emery Oleochemicals LLC
•
Filing: 1948-06-26
•
Granted: 1958-01-21
•
Expires: 1968-06-26
Abstract
No abstract record available.
Inventors
- 👤 Sprang Cornelius Austin
- 👤 Richard W Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:12
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C07; C07C; C07C55/00; C07C55/02; C07C69/00; C07C69/34; C07C69/44; C07C69/48; C07C69/52; C07C69/533; C07C69/58; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2366667A
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US2089181A
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US2104168A
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US2106703A
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US2206171A
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US2162178A
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CH237401A
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US2424588A
Cited
US2441555A
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US2512723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |