US2530131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic braking control system
Assignee: Beechcraft Corp
•
Filing: 1948-03-11
•
Granted: 1950-11-14
•
Expires: 1968-03-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Roters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
B; B60; B60L; B60L7/00; B60L7/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US628967A
Cited
US1177881A
Cited
US1455668A
Cited
US1713916A
Cited
US1989672A
Cited
GB324707A
Cited
US2046970A
Cited
US2078649A
Cited
US2249857A
Cited
US2400136A
Cited
US2408188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |