Patent US2940556A successfully refreshed from Google Patents.
US2940556A
Expired / Lapsed
US
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Friction devices
Assignee: Raybestos Manhattan Inc
•
Filing: 1957-10-08
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Granted: 1960-06-14
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Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Warren R Jensen
- 👤 Jr Arthur J Lacroix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:23
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/84; F16D65/853; F16D2065/784
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2428299A
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US2702770A
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US2686140A
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US2861964A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |