US2816662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil cleaning device
Assignee: Individual
•
Filing: 1955-12-27
•
Granted: 1957-12-17
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gustav P Nylen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:37
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/06; B; B01; B01D; B01D21/00; B01D21/0012; B01D21/24; B01D21/2488; B01D21/26; B01D21/265; B01D29/00; B01D29/11; B01D29/13; B01D29/23; B01D29/232; B01D29/237; B01D29/88; B01D29/90; B01D29/904; B01D2201/00; B01D2201/18; B01D2201/182; B01D2221/00; B01D2221/08
Claims Analysis
Total Claims: 0
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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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |