US2402204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for assembling centrifugal impellers
Assignee: NORTHROP AIRERAFT Inc
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Filing: 1941-11-19
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Granted: 1946-06-18
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Expires: 1961-11-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Phelan
- 👤 Vladimir H Pavlecka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:00
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49329
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) | 1949-06-17 | 1949-12-17 | 1950-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-17 | 1953-12-17 | 1954-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-17 | 1957-12-17 | 1958-06-18 | $7700.00 | Window Closed / Lapsed |