US2685507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making porous chambered bearing
Assignee: MICHIGAN POWDERED METAL PRODUC
•
Filing: 1950-03-31
•
Granted: 1954-08-03
•
Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 Leland C Blood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; Y; Y10; Y10S; Y10S264/00; Y10S264/44; Y10S425/00; Y10S425/012
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1556658A
Cited
GB452503A
Cited
US2180988A
Cited
US2227308A
Cited
US2402950A
Cited
US2364713A
Cited
GB573740A
Cited
GB611466A
Cited
US2561579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |