US3034702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan having a great axial length and comprising an air inlet at both ends
Assignee: Westerasmaskiner AB
•
Filing: 1958-11-17
•
Granted: 1962-05-15
•
Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Larsson Lars
- 👤 Thenander John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:24
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/422
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US353994A
Cited
US1922986A
Cited
GB430955A
Cited
DE722059C
Cited
GB579770A
Cited
US2682951A
Cited
US2815900A
Cited
US2855142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |