Patent US4770109A successfully refreshed from Google Patents.
US3036668A
Expired / Lapsed
US
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Operating mechanism for friction devices
Assignee: Wagner Electric Corp
•
Filing: 1959-03-02
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Granted: 1962-05-29
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Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Edward J Falk
- 👤 Robert L Gold
- 👤 Schnell Steve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:46
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/02; F16D51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1825296A
Cited
US1958236A
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US2116882A
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US2174018A
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US2155030A
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US2237095A
Cited
GB590534A
Cited
US2395207A
Cited
US2867295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |