Patent US1135296A successfully refreshed from Google Patents.
US1135296A
Expired / Lapsed
US
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Turbine-pump.
Assignee: Individual
•
Filing: 1911-07-06
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Granted: 1915-04-13
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Expires: 1931-07-06
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand W Krogh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:52
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2261; F04D29/2266
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) | 1918-04-12 | 1918-10-12 | 1919-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-04-12 | 1922-10-12 | 1923-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-04-12 | 1926-10-12 | 1927-04-13 | $7700.00 | Window Closed / Lapsed |