Patent US2541197A successfully refreshed from Google Patents.
US2541197A
Expired / Lapsed
US
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Rotary pump and motor hydraulic transmission
Assignee: J H WEATHERFORD
•
Filing: 1943-09-03
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Granted: 1951-02-13
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Expires: 1963-09-03
Abstract
No abstract record available.
Inventors
- 👤 Harry B Breedlove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:56
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/26; F16H39/30; F16H39/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191407213A
Cited
US1242389A
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US1545678A
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Cited
GB450625A
Cited
US2195246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |