Patent US1943418A successfully refreshed from Google Patents.
US1943418A
Expired / Lapsed
US
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Roller bearing construction
Assignee: Individual
•
Filing: 1932-09-22
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Granted: 1934-01-16
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Expires: 1952-09-22
Abstract
No abstract record available.
Inventors
- 👤 Charles S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:01
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/44; F16C19/46; F16C19/463; F16C33/00; F16C33/30; F16C33/46; F16C33/54; F16C33/542; F16C33/543; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49686
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) | 1937-01-15 | 1937-07-17 | 1938-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-15 | 1941-07-17 | 1942-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-15 | 1945-07-17 | 1946-01-16 | $7700.00 | Window Closed / Lapsed |