US2189242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for grinding eccentricity in pistons
Assignee: Individual
•
Filing: 1939-03-02
•
Granted: 1940-02-06
•
Expires: 1959-03-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin Eric
- 👤 Peterson Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:30
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/08; B24B19/10; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T82/00; Y10T82/13; Y10T82/25; Y10T82/2568; Y10T82/2571
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) | 1943-02-05 | 1943-08-07 | 1944-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-05 | 1947-08-07 | 1948-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-05 | 1951-08-07 | 1952-02-06 | $7700.00 | Window Closed / Lapsed |