US2477359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible chamber motor with oscillating cylinder and piston actuated distributing valve
Assignee: Individual
•
Filing: 1945-01-24
•
Granted: 1949-07-26
•
Expires: 1965-01-24
Abstract
No abstract record available.
Inventors
- 👤 Lilburn S Barksdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:49
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/126; E21B43/127; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86968
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2321423A
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US2280695A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |