US2267229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming roller bearing cups
Assignee: Bower Roller Bearing Co
•
Filing: 1939-05-12
•
Granted: 1941-12-23
•
Expires: 1959-05-12
Abstract
No abstract record available.
Inventors
- 👤 Zimmerman Thomas
- 👤 Albert J Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:15
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/04; F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49689
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) | 1944-12-22 | 1945-06-23 | 1945-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-22 | 1949-06-23 | 1949-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-22 | 1953-06-23 | 1953-12-23 | $7700.00 | Window Closed / Lapsed |