Patent US3474633A successfully refreshed from Google Patents.
US3474633A
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US
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Recovery of entrained liquid refrigerant
Assignee: Phillips Petroleum Co
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Filing: 1968-04-17
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Granted: 1969-10-28
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Expires: 1988-04-17
Abstract
No abstract record available.
Inventors
- 👤 Dunn M Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:14
CPC Classifications
F; F25; F25B; F25B43/00; F25B41/00; F25B41/20; F25B41/30; F25B41/31; F25B41/315; F25B2339/00; F25B2339/02; F25B2339/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |