US1415418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for purifying and rendering odorless the exhaust gases of internal-combustion engines and the like
Assignee: Schmidding Wilhelm GmbH and Co Firma
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Filing: 1920-09-10
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Granted: 1922-05-09
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Expires: 1940-09-10
Abstract
No abstract record available.
Inventors
- 👤 Wachtel Philipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N13/00; F01N13/009; F01N3/021; F01N3/038; F01N2330/00; F01N2330/10; F01N2450/00; F01N2450/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1925-05-08 | 1925-11-07 | 1926-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-05-08 | 1929-11-07 | 1930-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-05-08 | 1933-11-07 | 1934-05-09 | $7700.00 | Window Closed / Lapsed |