Patent US2418920A successfully refreshed from Google Patents.
US2418920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dispersing oil gels
Assignee: —
•
Filing: —
•
Granted: 1947-04-15
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Expires: 1964-04-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:17
CPC Classifications
C; C09; C09D; C09D191/00; C09D191/005; C08; C08L; C08L91/00; C08L91/005; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB250538A
Cited
US1864941A
Cited
US2113358A
Cited
US1459581A
Cited
US1791119A
Cited
GB341431A
Cited
US2041836A
Cited
US2224237A
Cited
US2195549A
Cited
US2271804A
Cited
US2260880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |