US2636714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dewatering device for adjustable blade rotary hydraulic machines
Assignee: Baldwin Lima Hamilton Corp
•
Filing: 1946-12-11
•
Granted: 1953-04-28
•
Expires: 1966-12-11
Abstract
No abstract record available.
Inventors
- 👤 Richard B Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:56
CPC Classifications
F; F03; F03B; F03B11/00; F03B3/00; F03B3/12; F03B3/14; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2085986A
Cited
US2070601A
Cited
US2073044A
Cited
US2090093A
Cited
US2079766A
Cited
US2321950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |