Patent US1671372A successfully refreshed from Google Patents.
US1671372A
Expired / Lapsed
US
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Ball bearing
Assignee: AUTO MACHINERY Co Ltd
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Filing: 1927-01-03
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Granted: 1928-05-29
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Expires: 1947-01-03
Abstract
No abstract record available.
Inventors
- 👤 Leedham Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:21
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/02; F16C19/14; F16C19/18; F16C19/181; F16C19/182; F16C33/00; F16C33/30; F16C33/58; F16C33/583; F16C33/585; F16C2240/00; F16C2240/40; F16C2240/70; F16C2240/80
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) | 1931-05-29 | 1931-11-28 | 1932-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-29 | 1935-11-28 | 1936-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-29 | 1939-11-28 | 1940-05-29 | $7700.00 | Window Closed / Lapsed |