Patent US2515288A successfully refreshed from Google Patents.
US2515288A
Expired / Lapsed
US
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Expansible chamber rotary motor of the sliding abutment type
Assignee: Individual
•
Filing: 1944-11-15
•
Granted: 1950-07-18
•
Expires: 1964-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jesse T Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:12
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/02; F16H61/00; F16H61/38; F16H61/40; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87249
Claims Analysis
Total Claims: 0
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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) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |