US1742840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball bearing and method of making same
Assignee: YAWMAN AND ERBE Manufacturing Co
•
Filing: 1927-12-23
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Granted: 1930-01-07
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Expires: 1947-12-23
Abstract
No abstract record available.
Inventors
- 👤 Stephen R Wing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:57
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49682; Y10T29/49684; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T29/49893; Y10T29/49908; Y10T29/49915; Y10T29/49947; Y10T29/49954; Y10T29/49956; Y10T29/49972
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) | 1933-01-06 | 1933-07-08 | 1934-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-01-06 | 1937-07-08 | 1938-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-01-06 | 1941-07-08 | 1942-01-07 | $7700.00 | Window Closed / Lapsed |