Patent US2983556A successfully refreshed from Google Patents.
US2983556A
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Low friction bearing
Assignee: Vitro Corp of America
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Filing: 1958-02-17
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Granted: 1961-05-09
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Expires: 1978-02-17
Abstract
No abstract record available.
Inventors
- 👤 Edward M Coan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:06
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/54; F16C19/55; F16C19/52; G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; F16C2370/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262361A
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US2517556A
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US2472824A
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US2469782A
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US2532723A
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US2577942A
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US2819053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |