US3014534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeller, propeller and the like for producing axial effect, particularly axial air flow
Assignee: Stora Enso Oyj
•
Filing: 1958-04-16
•
Granted: 1961-12-26
•
Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Vartiainen Aarne Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:06
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/38; F04D29/384
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1086274A
Cited
US1722112A
Cited
GB291313A
Cited
US1853607A
Cited
US1929690A
Cited
US1869802A
Cited
US2148555A
Cited
US2306177A
Cited
US2385070A
Cited
US2390804A
Cited
GB676406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |