US3461850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for reducing the noxious exhaust gas emission of internal combustion engines
Assignee: Daimler Benz AG
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Filing: 1967-08-29
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Granted: 1969-08-19
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Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Kurt Oblander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
F; F02; F02M; F02M33/00; F02M33/02; F02M3/00; F02M3/08; F02M3/10; F02M3/12; F02M31/00; F02M31/02; F02M31/04; F02M31/06; F02M31/08; F02M31/087; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |