US3390612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual stroke actuator
Assignee: Chandler Evans Inc
•
Filing: 1965-07-06
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Granted: 1968-07-02
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Donald F Wills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:51
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/16; F15B9/17; B; B64; B64C; B64C13/00; B64C13/24; F15B9/02; F15B9/03; Y; Y02; Y02T; Y02T50/00; Y02T50/40
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |