US3535851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable plant for removal of dust from hot gases
Assignee: STAUB und STROMUNGS TECH GmbH
•
Filing: 1968-07-08
•
Granted: 1970-10-27
•
Expires: 1988-07-08
Abstract
No abstract record available.
Inventors
- 👤 Heinz Meyer Zu Riemsloh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:55
CPC Classifications
B; B04; B04C; B04C7/00; B01; B01D; B01D46/00; B01D46/66; B01D46/70; B01D46/71; B01D50/00; B01D50/20; E; E01; E01C; E01C19/00; E01C19/02; E01C19/05; B01D2273/00; B01D2273/20
Claims Analysis
Total Claims: 0
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US3308609A
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US3304572A
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US3266225A
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US3362353A
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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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |