US2196491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for silencing and separating solid particles from pulsating gas streams
Assignee: Burgess Battery Co
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Filing: 1938-12-30
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Granted: 1940-04-09
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Expires: 1958-12-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred S Chipley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:24
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/007; F01N1/00; F01N1/08; F01N1/089; F01N3/00; F01N3/06; F02; F02M; F02M35/00; F02M35/02; F02M35/08; F02M35/084; F02M35/12; F02M35/1205; F02M35/1216; F02M35/1227; F02M35/14; F01N2230/00; F01N2230/06; F01N2470/00; F01N2470/02
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) | 1943-04-09 | 1943-10-09 | 1944-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-09 | 1947-10-09 | 1948-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-09 | 1951-10-09 | 1952-04-09 | $7700.00 | Window Closed / Lapsed |