US2801043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine supercharger
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1954-08-24
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Granted: 1957-07-30
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Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 Donald R Spotz
- 👤 Roy E Elbel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/08; F01D25/14; F01D25/145; F01D9/00; F01D9/02; F01D9/026; F02; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F05; F05D; F05D2220/00; F05D2220/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |