US2794609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple brake system for aircraft
Assignee: Lockheed Martin Corp
•
Filing: 1953-11-30
•
Granted: 1957-06-04
•
Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 Donald O Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:55
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0091; B64C25/00; B64C25/32; B64C25/42; B64C25/44; B64C25/48; B64C29/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE555392C
Cited
US1823255A
Cited
US2085173A
Cited
US2074730A
Cited
US2346820A
Cited
US2308802A
Cited
US2430808A
Cited
US2700904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |