Patent US20060235286A1 successfully refreshed from Google Patents.
US2419098A
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Contacting gases and vapors with cyclically moving catalyst
Assignee: STRATFORD DEV CORP
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Filing: 1946-06-21
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Granted: 1947-04-15
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Expires: 1966-06-21
Abstract
No abstract record available.
Inventors
- 👤 Charles W Stratford
- 👤 Joe A Altshuler
- 👤 David H Putney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:36
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10
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) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |