US3186146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for washing gases
Assignee: Continental Carbon Co
•
Filing: 1962-05-21
•
Granted: 1965-06-01
•
Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Burton F Latham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:36
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/10; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR624542A
Cited
US1734677A
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US2200891A
Cited
US2250757A
Cited
FR903942A
Cited
US2604185A
Cited
FR1067737A
Cited
DE1081424B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |