US2347178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible emulsion and application therefor
Assignee: National Oil Products Co
•
Filing: 1942-01-07
•
Granted: 1944-04-25
•
Expires: 1962-01-07
Abstract
No abstract record available.
Inventors
- 👤 James H Fritz
- 👤 Edwin A Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/40; B01F23/41; B01F23/414; B01F23/4142; C; C09; C09K; C09K23/00; C09K23/22; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-04-25 | 1947-10-25 | 1948-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-25 | 1951-10-25 | 1952-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-25 | 1955-10-25 | 1956-04-25 | $7700.00 | Window Closed / Lapsed |