Patent US4273004A successfully refreshed from Google Patents.
US2371399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bearings
Assignee: American Brake Shoe Co
•
Filing: 1942-05-25
•
Granted: 1945-03-13
•
Expires: 1962-05-25
Abstract
No abstract record available.
Inventors
- 👤 Burr W Mantle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:01
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/08; B22D19/085; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/08; F16C33/14; F16C9/00; F16C9/04; F16C2204/00; F16C2204/30; F16C2204/34; F16C2220/00; F16C2220/40; F16C2220/46; F16C2220/60; F16C2220/62; F16C2220/80; F16C2220/82; F16C2226/00; F16C2226/50; F16C2226/62; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677; Y10T29/49705; Y10T29/49789; Y10T29/4979
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) | 1948-03-12 | 1948-09-11 | 1949-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-12 | 1952-09-11 | 1953-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-12 | 1956-09-11 | 1957-03-13 | $7700.00 | Window Closed / Lapsed |