US2235450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankshaft blank
Assignee: RK Le Blond Machine Tool Co
•
Filing: 1940-01-08
•
Granted: 1941-03-18
•
Expires: 1960-01-08
Abstract
No abstract record available.
Inventors
- 👤 Willard L Groene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
B; B23; B23P; B23P25/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49286; Y10T29/49762; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12264; Y10T428/12271; Y10T82/00; Y10T82/19
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1944-03-17 | 1944-09-16 | 1945-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-17 | 1948-09-16 | 1949-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-17 | 1952-09-16 | 1953-03-18 | $7700.00 | Window Closed / Lapsed |