US3469079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigational aid
Assignee: Individual
•
Filing: 1963-04-15
•
Granted: 1969-09-23
•
Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Stansbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:16
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2385334A
Cited
US2428800A
Cited
US3208064A
Cited
US3095566A
Cited
US3227862A
Cited
US3071767A
Cited
US3114147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |