Patent US2498739A successfully refreshed from Google Patents.
US2498739A
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US
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Bearing seal
Assignee: MODERN DESIGN PRODUCTS Co
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Filing: 1946-01-17
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Granted: 1950-02-28
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Expires: 1966-01-17
Abstract
No abstract record available.
Inventors
- 👤 Charles D Magnesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:46
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950852A
Cited
US2163127A
Cited
US2279669A
Cited
US2342955A
Cited
US2393260A
Cited
US2404610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |