US2168124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil purifying device
Assignee: DE LUXE PRODUCTS Corp
•
Filing: 1936-03-16
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Granted: 1939-08-01
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Expires: 1956-03-16
Abstract
No abstract record available.
Inventors
- 👤 James E Hurn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
C; C10; C10M; C10M175/00; C10M175/0058; B; B01; B01D; B01D27/00; B01D27/005; B01D27/02; B01D27/10; B01D27/103; B01D2201/00; B01D2201/02
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) | 1942-07-31 | 1943-01-30 | 1943-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-31 | 1947-01-30 | 1947-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-31 | 1951-01-30 | 1951-08-01 | $7700.00 | Window Closed / Lapsed |