Patent US1600664A successfully refreshed from Google Patents.
US1600664A
Expired / Lapsed
US
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Gas-reclaimer oil saver and filter for internal-combustion engines
Assignee: Individual
•
Filing: 1922-04-03
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Granted: 1926-09-21
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Expires: 1942-04-03
Abstract
No abstract record available.
Inventors
- 👤 John C Cavitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/005; Y; Y10; Y10S; Y10S29/00; Y10S29/067
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) | 1929-09-20 | 1930-03-22 | 1930-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-09-20 | 1934-03-22 | 1934-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-09-20 | 1938-03-22 | 1938-09-21 | $7700.00 | Window Closed / Lapsed |