Patent US3508345A successfully refreshed from Google Patents.
US3508345A
Expired / Lapsed
US
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Fog simulator for pilot training
Assignee: United States Department of the Army
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Filing: 1967-08-22
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Granted: 1970-04-28
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Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Arnold K Dietrich
- 👤 Kurt W Jenkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:56
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/32; G09B9/326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3436840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |