US3394884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of mixed air flows
Assignee: United Aircraft Products Inc
•
Filing: 1966-11-03
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Granted: 1968-07-30
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Expires: 1986-11-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:09
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/80; B01F35/82; F; F24; F24F; F24F13/00; F24F13/26; B01F23/00; B01F23/10; Y; Y10; Y10T; Y10T137/00; Y10T137/3367; Y10T137/3421; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |