US3474680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft turbulence indicator
Assignee: ROBERT G BABSON
•
Filing: 1966-06-24
•
Granted: 1969-10-28
•
Expires: 1986-06-24
Abstract
No abstract record available.
Inventors
- 👤 Robert G Babson
- 👤 Virgil C James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:06
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/11; G01P1/00; G01P1/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2469137A
Cited
US2740946A
Cited
US2756406A
Cited
US2797912A
Cited
US3129347A
Cited
US3243238A
Cited
US3319472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |