US3026067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for producing and controlling airflow around airfoils
Assignee: Individual
•
Filing: 1957-11-13
•
Granted: 1962-03-20
•
Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Charles H Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:54
CPC Classifications
B; B64; B64C; B64C9/00; B64C9/14; B64C9/22; B64C9/26; B64C21/00; B64C21/02; B64C21/04; B64C9/16; B64C9/20; B64C9/28; B64C2230/00; B64C2230/04; B64C2230/16; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |