US2399072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal compressor
Assignee: General Electric Co
•
Filing: 1944-10-18
•
Granted: 1946-04-23
•
Expires: 1964-10-18
Abstract
No abstract record available.
Inventors
- 👤 Wendell S Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:15
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/441; F04D29/66; F04D29/68; F04D29/681; F04D29/684; F04D27/00; F04D27/02; F04D27/0207; F04D27/0238; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-04-22 | 1949-10-22 | 1950-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-22 | 1953-10-22 | 1954-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-22 | 1957-10-22 | 1958-04-23 | $7700.00 | Window Closed / Lapsed |