US2466988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal control system
Assignee: Western States Machine Co
•
Filing: 1946-10-15
•
Granted: 1949-04-12
•
Expires: 1966-10-15
Abstract
No abstract record available.
Inventors
- 👤 Hertrich Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:34
CPC Classifications
B; B04; B04B; B04B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US256236A
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US1566111A
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US1609421A
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USRE22772E
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US2096341A
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US2148320A
Cited
US2112430A
Cited
GB495679A
Cited
US2261914A
Cited
US2317528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |