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US2320794A
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Seal for antifriction bearings
Assignee: Hoover Universal Inc
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Filing: 1942-01-19
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Granted: 1943-06-01
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Expires: 1962-01-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Pew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:49
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C19/00; F16C19/02; F16C19/04; F16C19/06
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) | 1946-05-31 | 1946-11-30 | 1947-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-31 | 1950-11-30 | 1951-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-31 | 1954-11-30 | 1955-06-01 | $7700.00 | Window Closed / Lapsed |