Patent US3405511A successfully refreshed from Google Patents.
US3405511A
Expired / Lapsed
US
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Vane type separator
Assignee: Burgess Manning Inc
•
Filing: 1966-05-16
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Granted: 1968-10-15
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Edmund J Halter
- 👤 Calvin L Chance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:31
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/04; B01D45/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE257368C
Cited
DE615363C
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US1999246A
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US2643736A
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US2720938A
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US2752005A
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US2973056A
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US3093466A
Cited
US3254475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |