Patent US2714023A successfully refreshed from Google Patents.
US2714023A
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Dust guard and oil seal
Assignee: HENNESSY LUBRICATOR Co IN
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Filing: 1951-08-09
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Granted: 1955-07-26
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Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 James J Hennessy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:55
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/20; B61F15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US395087A
Cited
DE519979C
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US1289612A
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US1701707A
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US1519072A
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CH143556A
Cited
US1942567A
Cited
US2177441A
Cited
US2153499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |