US3425189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffuser-like inlet connection for electrical dust separators
Assignee: GEA Group AG
•
Filing: 1965-08-27
•
Granted: 1969-02-04
•
Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 Karl Haselmayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:59
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/36; B03C3/361; B03C3/363; B03C3/01; B03C3/011
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |