US2409057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Individual
•
Filing: 1943-05-24
•
Granted: 1946-10-08
•
Expires: 1963-05-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Meinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:00
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/02; F16J1/10; F16J1/14; F16J1/16; Y; Y10; Y10S; Y10S92/00; Y10S92/01
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) | 1949-10-07 | 1950-04-08 | 1950-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-07 | 1954-04-08 | 1954-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-07 | 1958-04-08 | 1958-10-08 | $7700.00 | Window Closed / Lapsed |