Patent US2755698A successfully refreshed from Google Patents.
US2755698A
Expired / Lapsed
US
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Retaining ring having shaft engaging projections to prevent inadvertent withdrawal
Assignee: Waldes Kohinoor Inc
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Filing: 1952-11-04
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Granted: 1956-07-24
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Expires: 1972-11-04
Abstract
No abstract record available.
Inventors
- 👤 Wurzel Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2152977A
Cited
US2203397A
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US2284222A
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US2405476A
Cited
US2411761A
Cited
US2487803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |