US1476418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for aeroplane superchargers
Assignee: General Electric Co
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Filing: 1919-05-31
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Granted: 1923-12-04
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Expires: 1939-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin W Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:50
CPC Classifications
F; F02; F02B; F02B39/00; F02B39/005; F02B37/00; F02B37/12; F02B37/18; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F02D; F02D9/00; F02M; F02M63/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0246; F02D2700/0248; F02M2700/00; F02M2700/05; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1926-12-03 | 1927-06-04 | 1927-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-12-03 | 1931-06-04 | 1931-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-12-03 | 1935-06-04 | 1935-12-04 | $7700.00 | Window Closed / Lapsed |