Patent FR1064435A successfully refreshed from Google Patents.
Patent US4320087A successfully refreshed from Google Patents.
US3527701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating liquids contaminated with hydrocarbons compounds
Assignee: Aqseptence Group GmbH
•
Filing: 1968-06-11
•
Granted: 1970-09-08
•
Expires: 1988-06-11
Abstract
No abstract record available.
Inventors
- 👤 Walter Weiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:25
CPC Classifications
B; B01; B01D; B01D50/00; B01D15/00; B01D17/00; B01D17/02; B01D17/0202; B01D46/00; B01D46/30; B01D46/32; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
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) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |