US2429324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for centrifugal compressors
Assignee: Individual
•
Filing: 1944-09-20
•
Granted: 1947-10-21
•
Expires: 1964-09-20
Abstract
No abstract record available.
Inventors
- 👤 Meisser Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:08
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/284; Y; Y10; Y10T; Y10T29/00; Y10T29/37; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49325; Y10T29/49329; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/302688; Y10T409/302744
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1797455A
Cited
US2189767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |