US2538529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge
Assignee: Komline Sanderson Engineering Corp
•
Filing: 1945-12-18
•
Granted: 1951-01-16
•
Expires: 1965-12-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Komline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/10; B04B1/12; B04B1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US499345A
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US1321354A
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US1321353A
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US802473A
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US921371A
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US927059A
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US1344055A
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US1635482A
Cited
US1894520A
Cited
US2200202A
Cited
US2219117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |