Patent US2664222A successfully refreshed from Google Patents.
US2664222A
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Cylinder boss assembly
Assignee: Weatherhead Co
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Filing: 1949-08-24
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Granted: 1953-12-29
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Expires: 1969-08-24
Abstract
No abstract record available.
Inventors
- 👤 Lewis O King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:59
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; F17C13/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US368611A
Cited
GB191511059A
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GB348285A
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US1948953A
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US1948966A
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US2113060A
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US2333968A
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US2386246A
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US2366141A
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US2421460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |