Patent US1996610A successfully refreshed from Google Patents.
US1996610A
Expired / Lapsed
US
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Antifriction bearing
Assignee: NORMA HOFFMAN BEARINGS CORP
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Filing: 1932-12-05
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Granted: 1935-04-02
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Expires: 1952-12-05
Abstract
No abstract record available.
Inventors
- 👤 George R Bott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067
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) | 1938-04-01 | 1938-10-01 | 1939-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-01 | 1942-10-01 | 1943-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-01 | 1946-10-01 | 1947-04-02 | $7700.00 | Window Closed / Lapsed |