Patent US1939467A successfully refreshed from Google Patents.
US1939467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bearings
Assignee: MORAINE PRODUCTS Co
•
Filing: 1929-05-03
•
Granted: 1933-12-12
•
Expires: 1949-05-03
Abstract
No abstract record available.
Inventors
- 👤 Charles R Short
- 👤 Roland P Koehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:19
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/08; B22D19/085; F; F16; F16C; F16C17/00; F16C17/02; F16C17/022; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C9/00; F16C9/04; F16C2220/00; F16C2220/60; F16C2223/00; F16C2223/30; F16C2223/32; F16C2223/40; F16C2226/00; F16C2226/30; F16C2226/50; F16C2226/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677; Y10T29/49705; Y10T29/49709
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) | 1936-12-11 | 1937-06-12 | 1937-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-12-11 | 1941-06-12 | 1941-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-12-11 | 1945-06-12 | 1945-12-12 | $7700.00 | Window Closed / Lapsed |