Patent US3517568A successfully refreshed from Google Patents.
US3517568A
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US
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Single lever control
Assignee: Boeing North American Inc
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Filing: 1968-07-05
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Granted: 1970-06-30
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Expires: 1988-07-05
Abstract
No abstract record available.
Inventors
- 👤 Frank S Payerle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:38
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06; E01H5/065; E01H5/066; E02; E02F; E02F9/00; E02F9/20; E02F9/2004; G; G05; G05G; G05G9/00; G05G9/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
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) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |