US784371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic-fluid turbine.
Assignee: AG DER MASCHINENFABRIKEN VON ESCHER WYSS and Co
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Filing: 1904-04-05
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Granted: 1905-03-07
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Expires: 1924-04-05
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Zoelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:24
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/141
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) | 1908-03-06 | 1908-09-05 | 1909-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-03-06 | 1912-09-05 | 1913-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-03-06 | 1916-09-05 | 1917-03-07 | $7700.00 | Window Closed / Lapsed |