US2925534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treatment of gases
Assignee: Lanteris Space LLC
•
Filing: 1958-03-11
•
Granted: 1960-02-16
•
Expires: 1978-03-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry D Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:35
CPC Classifications
H; H01; H01T; H01T23/00; F; F24; F24F; F24F8/00; F24F8/10; F24F8/192; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2318093A
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US2484202A
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US2585799A
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US2617761A
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US2617860A
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US2589613A
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US2756840A
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GB764264A
Cited
US2721622A
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DK34384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |