US2404808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bearings
Assignee: SK Wellman Corp
•
Filing: 1943-05-31
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Granted: 1946-07-30
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Expires: 1963-05-31
Abstract
No abstract record available.
Inventors
- 👤 Francis J Lowey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:58
CPC Classifications
F; F16; F16C; F16C43/00; F16C43/02; F16C17/00; F16C17/10; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C17/02; F16C2223/00; F16C2223/30; F16C2223/80; F16C2226/00; F16C2226/30; F16C2226/32; F16C2226/34; F16C2226/36; F16C2226/50; F16C2226/70; F16C2226/76; F16C33/12; F16C33/122; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677
Claims Analysis
Total Claims: 0
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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) | 1949-07-29 | 1950-01-28 | 1950-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-29 | 1954-01-28 | 1954-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-29 | 1958-01-28 | 1958-07-30 | $7700.00 | Window Closed / Lapsed |