Patent US1639684A successfully refreshed from Google Patents.
US1639684A
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Mounting for antifriction bearings
Assignee: NORMA HOFFMANN BEARINGS CORP
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Filing: 1926-07-10
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Granted: 1927-08-23
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Expires: 1946-07-10
Abstract
No abstract record available.
Inventors
- 👤 George R Bott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:46
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/6607; F16C33/6611; F16C25/00; F16C25/06; F16C25/08; F16C25/083; F16C27/00; F16C27/04; F16C33/72; F16C33/723; F16C35/00; F16C35/04; F16C35/06; F16C35/07; F16C35/077; F16C2314/00; F16C2380/00; F16C2380/26
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) | 1930-08-22 | 1931-02-21 | 1931-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-22 | 1935-02-21 | 1935-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-22 | 1939-02-21 | 1939-08-23 | $7700.00 | Window Closed / Lapsed |