Patent US2674473A successfully refreshed from Google Patents.
US2674473A
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Bearing seal
Assignee: MASTER ELECTRIC CO
•
Filing: 1948-03-24
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Granted: 1954-04-06
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Expires: 1968-03-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:41
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2156719A
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US2226001A
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US2308114A
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US2342955A
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GB562922A
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US2377452A
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US2362341A
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US2430064A
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US2419385A
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US2445018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |