Patent US2664963A successfully refreshed from Google Patents.
US2664963A
Expired / Lapsed
US
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Gas and multiple liquid separator apparatus
Assignee: Sivalls Tanks Inc
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Filing: 1950-06-23
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Granted: 1954-01-05
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Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Isaac W Lovelady
- 👤 Sanford P Kroeker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052; B01D19/0057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1648558A
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US2167160A
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US2179131A
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US2284737A
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US2457959A
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US2479386A
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US2601904A
Cited
US2528032A
Cited
US2601903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |