US1605484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for treating exhaust gases
Assignee: Thompson Chemical Co
•
Filing: 1925-11-06
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Granted: 1926-11-02
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Expires: 1945-11-06
Abstract
No abstract record available.
Inventors
- 👤 Charles E Thompson
- 👤 Richard E Bissell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/2006; F01N3/2046; F01N3/2013; F01N3/2033; F01N3/204; F01N3/22; F01N3/24; F01N3/30; F01N3/34; F01N3/38; F01N13/00; F01N13/14; F01N2230/00; F01N2230/04; F01N2470/00; F01N2470/02; F01N2470/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-11-01 | 1930-05-03 | 1930-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-11-01 | 1934-05-03 | 1934-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-11-01 | 1938-05-03 | 1938-11-02 | $7700.00 | Window Closed / Lapsed |