US3068629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone separators in tiers
Assignee: Babcock International Ltd
•
Filing: 1959-11-12
•
Granted: 1962-12-18
•
Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Jones Gerwyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
B; B04; B04C; B04C3/00; Y; Y10; Y10S; Y10S55/00; Y10S55/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE7188C
Cited
US1333325A
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US2205966A
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US2666499A
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US2862479A
Cited
US2845906A
Cited
US2936852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |