US2553958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sedimentation device
Assignee: General American Transportation Corp
•
Filing: 1945-04-14
•
Granted: 1951-05-22
•
Expires: 1965-04-14
Abstract
No abstract record available.
Inventors
- 👤 Chelminski Roman
- 👤 Otto R Kuster
- 👤 Dealy K Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:26
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/18; B01D21/20; B01D21/22; B01D21/24; B01D21/2405; B01D21/2427; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2226974A
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US2126884A
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US2295943A
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US2265046A
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US2286397A
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US2291836A
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US2368703A
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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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |