US3314178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigational aid
Assignee: ASTRO OPTICS Inc
•
Filing: 1965-09-29
•
Granted: 1967-04-18
•
Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Richardson W Sayler
- 👤 Ralph E Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:45
CPC Classifications
B; B64; B64D; B64D43/00; B64D45/00; B64D2045/0075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US922204A
Cited
US1701696A
Cited
FR679354A
Cited
US2646637A
Cited
US2716298A
Cited
US2824393A
Cited
US2850837A
Cited
US2971125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |