US2327237A
Expired / Lapsed
US
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Method for making retainers for antifriction bearings
Assignee: NORMA HOFFMAN BEARINGS CORP
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Filing: 1941-09-22
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Granted: 1943-08-17
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Expires: 1961-09-22
Abstract
No abstract record available.
Inventors
- 👤 Carl A Baden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:57
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/46; F16C33/4617; F16C33/4623; F16C33/4629; B; B23; B23P; B23P15/00; B23P15/003; F16C33/467; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C2300/00; F16C2300/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49691
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) | 1946-08-16 | 1947-02-15 | 1947-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-16 | 1951-02-15 | 1951-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-16 | 1955-02-15 | 1955-08-17 | $7700.00 | Window Closed / Lapsed |