US2763427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial-flow machines
Assignee: Armstrong Siddeley Motors Ltd
•
Filing: 1950-09-22
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Granted: 1956-09-18
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Expires: 1970-09-22
Abstract
No abstract record available.
Inventors
- 👤 William H Lindsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:26
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/54; F04D29/541; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23108E
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CH225232A
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US2406473A
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US2469375A
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US2527971A
Cited
GB619390A
Cited
GB618224A
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US2625010A
Cited
US2636666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |