US2479126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid clarifier
Assignee: WR Grace and Co
•
Filing: 1945-02-08
•
Granted: 1949-08-16
•
Expires: 1965-02-08
Abstract
No abstract record available.
Inventors
- 👤 Gaston J Lipscomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:16
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/24; B01D21/2405; B01D21/2416; B01D21/0012; B01D21/003; B01D21/10; B01D21/12; B01D21/14; B01D21/2433; B01D21/245; B01D2221/00; B01D2221/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1122625A
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US1908102A
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FR724614A
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US1960904A
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US2185785A
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US2253878A
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US2377875A
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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) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |