US2785879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet gas washing apparatus
Assignee: Individual
•
Filing: 1954-05-04
•
Granted: 1957-03-19
•
Expires: 1974-05-04
Abstract
No abstract record available.
Inventors
- 👤 Cramp George Berkley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:17
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/16; Y; Y10; Y10S; Y10S261/00; Y10S261/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US736294A
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US833467A
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US970654A
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US1218354A
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US1269724A
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US1632572A
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US2503523A
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US2586692A
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US2608388A
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US2653799A
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US2705595A
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US2703228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |