US1822322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine piston
Assignee: Individual
•
Filing: 1928-02-27
•
Granted: 1931-09-08
•
Expires: 1948-02-27
Abstract
No abstract record available.
Inventors
- 👤 Ray N Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:12
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/0015; F02F3/0023; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2201/04; F05C2201/0433; F05C2201/0448; Y; Y10; Y10S; Y10S411/00; Y10S411/914; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-09-07 | 1935-03-09 | 1935-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-07 | 1939-03-09 | 1939-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-07 | 1943-03-09 | 1943-09-08 | $7700.00 | Window Closed / Lapsed |