US2459635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas washer
Assignee: PETERS DALTON Inc
•
Filing: 1945-08-30
•
Granted: 1949-01-18
•
Expires: 1965-08-30
Abstract
No abstract record available.
Inventors
- 👤 Orrin E Fenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:57
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/022; B01D47/027; B05; B05B; B05B14/00; B05B14/40; B05B14/46; B05B14/468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US191512A
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US283025A
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US585568A
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US716380A
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CH58659A
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US1167909A
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US1918531A
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US2227465A
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US2316491A
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US2373330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |