US3285067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane instrument for furnishing a deceleration-modified director signal to indicate or control corrective action for offsetting decrease in head wind during landing approach
Assignee: Safe Flight Instrument LLC
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Filing: 1963-10-16
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Granted: 1966-11-15
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Leonard M Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
B; B64; B64D; B64D43/00; B64D43/02; F; F21; F21V; F21V23/00; F21V23/04; G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0615
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AN AIRPLANE INSTRUMENT FOR FURNISHING A DIRECTORSIGNAL TO INDICATE OR CONTROL CORRECTIVE ACTION FOR OFFSETTING DECREASE IN HEAD WIND DURING LANDING APPROACH, SAID INSTRUMENT COMPRISING MEANS HAVING AN OUTPUT WHICH VARIES AS A FUNCTION OF THE INDICATED AIR SPEED OF AN AIRPLANE, AND
Claim 2
Dependent Claim
43 words
AN AIRPLANE INSTRUMENT FOR FURNISHING A DIRECTORSIGNAL TO INDICATE OR CONTROL CORRECTIVE ACTION FOR OFFSETTING DECREASE IN HEAD WIND DURING LANDING APPROACH, SAID INSTRUMENT COMPRISING MEANS HAVING AN OUTPUT WHICH VARIES AS A FUNCTION OF THE INDICATED AIR SPEED OF AN AIRPLANE, AND
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |