US2390343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Individual
•
Filing: 1943-10-09
•
Granted: 1945-12-04
•
Expires: 1963-10-09
Abstract
No abstract record available.
Inventors
- 👤 Irving E Aske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:23
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/10; F02F3/12; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12472; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917
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) | 1948-12-03 | 1949-06-04 | 1949-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-03 | 1953-06-04 | 1953-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-03 | 1957-06-04 | 1957-12-04 | $7700.00 | Window Closed / Lapsed |