US2369043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of cams
Assignee: De Havilland Aircraft Co Ltd
•
Filing: 1943-08-03
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Granted: 1945-02-06
•
Expires: 1963-08-03
Abstract
No abstract record available.
Inventors
- 👤 Halford Frank Bernard
- 👤 Brodie John Longmuir Penman
- 👤 Miller Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:49
CPC Classifications
B; B23; B23P; B23P15/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49813; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-02-06 | 1948-08-07 | 1949-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-06 | 1952-08-07 | 1953-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-06 | 1956-08-07 | 1957-02-06 | $7700.00 | Window Closed / Lapsed |