Patent US1901967A successfully refreshed from Google Patents.
US1901967A
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US
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Antifriction bearing
Assignee: SHAFER BEARING Corp
•
Filing: 1931-08-07
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Granted: 1933-03-21
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Expires: 1951-08-07
Abstract
No abstract record available.
Inventors
- 👤 Ray B Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:32
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C33/00; F16C33/30; F16C33/38; F16C33/42; F16C33/422; F16C33/46; F16C33/54; F16C33/542; F16C33/543; F16C23/00; F16C23/06; F16C23/08; F16C23/082; F16C23/086
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) | 1936-03-20 | 1936-09-19 | 1937-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-20 | 1940-09-19 | 1941-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-20 | 1944-09-19 | 1945-03-21 | $7700.00 | Window Closed / Lapsed |