US2663950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent saver recovery apparatus
Assignee: Detrex Corp
•
Filing: 1949-01-15
•
Granted: 1953-12-29
•
Expires: 1969-01-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Dinley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:09
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/08; D06F43/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB531346A
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US2360985A
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US2418239A
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US2386293A
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US2443443A
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US2477820A
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US2451692A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |