US2959290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling tank with agitating vanes
Assignee: Lakeside Engineering Corp
•
Filing: 1958-01-17
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Granted: 1960-11-08
•
Expires: 1978-01-17
Abstract
No abstract record available.
Inventors
- 👤 John A Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:31
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0018; B01D21/0039; B01D21/0042; B01D21/10; B01D21/12; B01D21/14; B01D21/18; B01D21/24; B01D21/2405; B01D21/2427; B01D21/2433; B01D21/2444; B01D21/28; B01D21/286; B01D21/0003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1672583A
Cited
US1938894A
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US2051149A
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US2418950A
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US2527788A
Cited
US2525842A
Cited
US2678916A
Cited
US2714090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |