Patent US2801714A successfully refreshed from Google Patents.
US2801714A
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Heat insulating friction shoe and piston unit
Assignee: MEADVILLE RES PRODUCTS CORP
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Filing: 1956-06-29
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Granted: 1957-08-06
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 Dotto John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; F16D65/00; F16D65/78; F16D65/84; F16D2065/785; F16D2125/00; F16D2125/02; F16D2125/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |