US2901626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the analysis of hot, dust-laden gases
Assignee: Huettenwerk Oberhausen AG
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Filing: 1958-04-29
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Granted: 1959-08-25
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Expires: 1978-04-29
Abstract
No abstract record available.
Inventors
- 👤 Becker Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:10
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40; G01N1/4077; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N1/2202; G01N1/2214; G01N2001/2282; G01N1/2813; G01N2001/282; G01N2001/2826; G01N2001/4088
Claims Analysis
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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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |