Patent US2453367A successfully refreshed from Google Patents.
US2453367A
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Self-balancing centrifuge
Assignee: Individual
•
Filing: 1941-02-10
•
Granted: 1948-11-09
•
Expires: 1961-02-10
Abstract
No abstract record available.
Inventors
- 👤 Mark A Giblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:14
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/20; D06F37/24; D06F37/245; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2109
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE51902C
Cited
US198346A
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US305026A
Cited
US322069A
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US330345A
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US331450A
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US1438149A
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US1521858A
Cited
US1604748A
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US1743441A
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US1754252A
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US1760775A
Cited
US1847159A
Cited
US2224241A
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US2230345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |