US2412841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air and water separator for removing air or water mixed with hydrocarbons, comprising a cartridge containing a wadding of wooden shavings
Assignee: Individual
•
Filing: 1944-03-14
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Granted: 1946-12-17
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Expires: 1964-03-14
Abstract
No abstract record available.
Inventors
- 👤 Earl G Spangler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:18
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06; B; B67; B67D; B67D7/00; B67D7/06; B67D7/76; B67D7/766
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) | 1949-12-16 | 1950-06-17 | 1950-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-16 | 1954-06-17 | 1954-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-16 | 1958-06-17 | 1958-12-17 | $7700.00 | Window Closed / Lapsed |