US2465154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed governor for centrifuges
Assignee: International Motors LLC
•
Filing: 1945-11-07
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Granted: 1949-03-22
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Expires: 1965-11-07
Abstract
No abstract record available.
Inventors
- 👤 William H Harstick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:55
CPC Classifications
B; B04; B04B; B04B9/00; B04B9/10; G; G05; G05D; G05D13/00; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/924; Y10S388/935; Y10S388/936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US712048A
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US1008201A
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US1124715A
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US1106588A
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US1598383A
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US1835811A
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US2080804A
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US2115547A
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US2196434A
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US2130528A
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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) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |