US940689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stop for elastic-fluid turbines.
Assignee: Westinghouse Machine Co
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Filing: 1904-11-17
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Granted: 1909-11-23
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Expires: 1924-11-17
Abstract
No abstract record available.
Inventors
- 👤 Francis Hodgkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:29
CPC Classifications
G; G05; G05D; G05D13/00; F; F03; F03B; F03B15/00; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1912-11-22 | 1913-05-24 | 1913-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-22 | 1917-05-24 | 1917-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-22 | 1921-05-24 | 1921-11-23 | $7700.00 | Window Closed / Lapsed |