US2192450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position indicator for airplanes
Assignee: Individual
•
Filing: 1939-05-15
•
Granted: 1940-03-05
•
Expires: 1959-05-15
Abstract
No abstract record available.
Inventors
- 👤 Milo F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:31
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/08; B64D25/20; Y; Y10; Y10S; Y10S116/00; Y10S116/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-03-05 | 1943-09-04 | 1944-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-05 | 1947-09-04 | 1948-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-05 | 1951-09-04 | 1952-03-05 | $7700.00 | Window Closed / Lapsed |