US2379551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing gases
Assignee: Individual
•
Filing: 1944-10-06
•
Granted: 1945-07-03
•
Expires: 1964-10-06
Abstract
No abstract record available.
Inventors
- 👤 Talley Henry Alfred Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:15
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/312; B01F25/3121; B01F25/3124; B01F25/31242; B01F25/3125; B01F25/31253; B01F25/312533; B01F25/40; B01F25/42; B01F25/43; B01F25/433; B01F25/4336; B01F23/00; B01F23/10
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) | 1948-07-02 | 1949-01-01 | 1949-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-07-02 | 1953-01-01 | 1953-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-07-02 | 1957-01-01 | 1957-07-03 | $7700.00 | Window Closed / Lapsed |