US3414129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature, oxygen-free edible oil filtration
Assignee: Procter and Gamble Co
•
Filing: 1967-12-27
•
Granted: 1968-12-03
•
Expires: 1987-12-27
Abstract
No abstract record available.
Inventors
- 👤 Louis H Going
- 👤 Robert E Mersfelder
- 👤 Robert O Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:23
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/60; B01D29/606; B01D29/62; B01D29/66; B01D29/661; B01D29/668
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |