US3529283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft flight director instrument
Assignee: Collins Radio Co
•
Filing: 1967-11-14
•
Granted: 1970-09-15
•
Expires: 1987-11-14
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Emerson
- 👤 Kenneth G Martin
- 👤 Siegfried Knemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:40
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0653; G05D1/0676; G01; G01C; G01C23/00; G01C23/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3190585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |