US2640315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine starter mounting
Assignee: AV Roe Canada Ltd
•
Filing: 1950-06-17
•
Granted: 1953-06-02
•
Expires: 1970-06-17
Abstract
No abstract record available.
Inventors
- 👤 Secord Lloyd Calvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:27
CPC Classifications
F; F02; F02N; F02N7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23198E
Cited
US2411552A
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US2457833A
Cited
US2479573A
Cited
US2489683A
Cited
GB616695A
Cited
US2452298A
Cited
GB617474A
Cited
US2559006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |