US2606796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal flow self-lubricating journal box and bearing
Assignee: Individual
•
Filing: 1948-05-28
•
Granted: 1952-08-12
•
Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 John H Helms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:33
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; B; B61; B61F; B61F17/00; B61F17/02; B61F17/14; B61F17/20; F16C2326/00; F16C2326/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US158169A
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US503074A
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US612653A
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GB190615009A
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US889999A
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GB190821085A
Cited
US1375376A
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US1439321A
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US1905281A
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US2264908A
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US2498520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |