US2149670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonator
Assignee: Individual
•
Filing: 1937-02-15
•
Granted: 1939-03-07
•
Expires: 1957-02-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph S Fetterly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:38
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/232; B01F23/2322; Y; Y10; Y10S; Y10S261/00; Y10S261/07; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7846; Y10T137/794; Y10T137/7976
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) | 1942-03-06 | 1942-09-05 | 1943-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-06 | 1946-09-05 | 1947-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-06 | 1950-09-05 | 1951-03-07 | $7700.00 | Window Closed / Lapsed |