US2431249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing projections to rotors
Assignee: Armstrong Siddeley Motors Ltd
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Filing: 1944-07-11
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Granted: 1947-11-18
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Expires: 1964-07-11
Abstract
No abstract record available.
Inventors
- 👤 Heppner Fritz Albert Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:02
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3023; F01D5/303; F01D5/3038; B; B23; B23P; B23P15/00; B23P15/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1318091A
Cited
US1371768A
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US1366605A
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FR703602A
Cited
GB348993A
Cited
US2240743A
Cited
US2240742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |