US2455820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of oil-in-water emulsions
Assignee: Kelco Co
•
Filing: 1946-05-21
•
Granted: 1948-12-07
•
Expires: 1966-05-21
Abstract
No abstract record available.
Inventors
- 👤 Arnold B Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:48
CPC Classifications
C; C09; C09K; C09K23/00; A; A23; A23L; A23L27/00; A23L27/60; C09K23/56; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189917414A
Cited
US2344688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-07 | 1952-06-07 | 1952-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-07 | 1956-06-07 | 1956-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-07 | 1960-06-07 | 1960-12-07 | $7700.00 | Window Closed / Lapsed |