US2020850A
Expired / Lapsed
US
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Apparatus for mixing liquids and gases
Assignee: New Jersey Zinc Co
•
Filing: 1933-12-15
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Granted: 1935-11-12
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Expires: 1953-12-15
Abstract
No abstract record available.
Inventors
- 👤 Arne J Myhren
- 👤 Marquis Byron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:23
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/18; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/234; B01F23/2341; B01F23/23413; B01F23/40; B01F23/45; B01F23/454; B01F25/00; B01F25/20; B01F25/27; B01F25/30; B01F25/31; B01F25/312; B01F25/3121; B01F25/3124; B01F25/31243; B01F25/3125; B01F25/31253; B01F25/312533; B01F25/50; B01F25/53; B01F33/00; B01F33/80; B01F33/81; B01F33/811; B01F33/834; Y; Y10; Y10S; Y10S261/00; Y10S261/54; 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) | 1938-11-11 | 1939-05-13 | 1939-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-11 | 1943-05-13 | 1943-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-11 | 1947-05-13 | 1947-11-12 | $7700.00 | Window Closed / Lapsed |