US2852974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft windshield projection system
Assignee: Individual
•
Filing: 1954-02-23
•
Granted: 1958-09-23
•
Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Charles E Nobles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0101; G02B2027/0138
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2750833A
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US1871877A
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US2251984A
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US2392978A
Cited
US2426184A
Cited
US2537996A
Cited
US2633051A
Cited
US2589930A
Cited
US2579806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |