US2221152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminating means for navigating instruments
Assignee: Bendix Aviation Corp
•
Filing: 1938-06-18
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Granted: 1940-11-12
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Expires: 1958-06-18
Abstract
No abstract record available.
Inventors
- 👤 Gregory V Rylsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
G; G01; G01C; G01C1/00; G01C1/08; G01C1/10; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/32; Y; Y10; Y10S; Y10S385/00; Y10S385/901
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) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |