Patent US2864461A successfully refreshed from Google Patents.
US2864461A
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Integrated oil separating system for gas compressors
Assignee: Wagner Electric Corp
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Filing: 1955-03-23
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Granted: 1958-12-16
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Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Stanley T Dueker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:04
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; F; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE506149C
Cited
US1691536A
Cited
FR621638A
Cited
US2016641A
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US2113447A
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US2214658A
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US2216389A
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US2200198A
Cited
US2288245A
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CH224601A
Cited
DE849950C
Cited
US2392872A
Cited
US2692026A
Cited
GB700791A
Cited
US2669321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |