Patent US3386581A successfully refreshed from Google Patents.
US3386581A
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US
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Liquid separators
Assignee: CT HARWOOD Ltd WALNUT TREE HOUSE WOODBRIDGE PARK GUILDFORD SURREY GU1 1EL
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Filing: 1965-08-27
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Granted: 1968-06-04
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 Dick Valentine Gough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:58
CPC Classifications
F; F22; F22D; F22D11/00; F22D11/02; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; F02; F02M; F02M37/00; F02M37/22; F02M37/24; F02M37/26; F02M37/28; F02B; F02B3/00; F02B3/06; F02M37/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2026196A
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US2204998A
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US2328027A
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US2499494A
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GB827220A
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US3080972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |