US2536558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump and motor hydraulic transmission system
Assignee: Keelavite Co Ltd
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Filing: 1947-01-02
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Granted: 1951-01-02
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Expires: 1967-01-02
Abstract
No abstract record available.
Inventors
- 👤 Levetus Francis Benjamin
- 👤 Chittenden George Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:45
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/40; F15B2211/405; F15B2211/40507; F15B2211/40515; F15B2211/40576; F15B2211/40584; F15B2211/415; F15B2211/41509; F15B2211/41554; F15B2211/42; F15B2211/428; F15B2211/45; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/50545; F15B2211/515; F15B2211/5151; F15B2211/5153; F15B2211/70; F15B2211/705; F15B2211/7058; F15B2211/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |