US2417224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential turbine for fluid transmission
Assignee: Weatherhead Co
•
Filing: 1944-01-06
•
Granted: 1947-03-11
•
Expires: 1964-01-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert J Weatherhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:07
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/02; F16H48/00; F16H48/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US578759A
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US600007A
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US752545A
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GB189904638A
Cited
FR382963A
Cited
US865160A
Cited
GB191308975A
Cited
US2024663A
Cited
US2194316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |