Patent US2736620A successfully refreshed from Google Patents.
US2736620A
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US
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Positive pressure journal bearing
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1953-03-26
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Granted: 1956-02-28
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Expires: 1973-03-26
Abstract
No abstract record available.
Inventors
- 👤 Brier Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:50
CPC Classifications
B; B61; B61F; B61F17/00; B61F17/02; B61F17/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US158169A
Cited
US368937A
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US783958A
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US1216044A
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US1757582A
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GB289881A
Cited
US1894082A
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US2049225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |