US2803507A
Expired / Lapsed
US
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Resilient spacer rings for multiple bearings rotatably supporting shafts
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1952-12-03
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Granted: 1957-08-20
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Expires: 1972-12-03
Abstract
No abstract record available.
Inventors
- 👤 Mempel Rudolf
- 👤 Schultz Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:15
CPC Classifications
F; F16; F16C; F16C25/00; F16C25/06; F16C25/08; F16C25/083; F16C19/00; F16C19/54; F16C27/00; F16C27/06; F16C27/066; F16C19/02; F16C19/04; F16C19/06; F16C19/546; F16C19/547; F16C2380/00; F16C2380/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1102547A
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US1156188A
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US1930098A
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US2015784A
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US2357597A
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US2543647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |