US1839952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for mixing gases and liquids
Assignee: American Ozone Co
•
Filing: 1928-01-07
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Granted: 1932-01-05
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Expires: 1948-01-07
Abstract
No abstract record available.
Inventors
- 👤 Daily James Marlowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:57
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/312; B01F25/3121; Y; Y10; Y10S; Y10S261/00; Y10S261/75
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) | 1935-01-04 | 1935-07-06 | 1936-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-04 | 1939-07-06 | 1940-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-04 | 1943-07-06 | 1944-01-05 | $7700.00 | Window Closed / Lapsed |