US3450632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for simultaneously coalescing,filtering and removing oil traces from liquids and media for accomplishing the same
Assignee: Chevron USA Inc
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Filing: 1967-05-03
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Granted: 1969-06-17
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Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert James Olson
- 👤 George L Ellis
- 👤 Malcolm Huval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:24
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/22; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D29/00; B01D29/01; B01D29/012; B01D29/11; B01D29/111; B01D29/13; B01D29/23; B01D29/232; B01D29/237; B01D29/50; B01D29/52; B01D29/56; B01D29/58; B01D36/00; B01D36/001; B01D36/003; B01D39/00; B01D39/10; B01D39/12; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; B01D39/163; B01D2201/00; B01D2201/18; B01D2201/188; B01D2239/00; B01D2239/04; B01D2239/0464; B01D2239/06; B01D2239/065; B01D2239/0654; B01D2239/069; B01D2239/0695; B01D2239/08; B01D2239/086; B01D2239/12; B01D2239/1291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3186551A
Cited
US3034656A
Cited
US3256997A
Cited
US3228527A
Cited
US3115459A
Cited
US3229817A
Cited
US3347391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |