US2134745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for proportioning the flow of fluids
Assignee: Askania Werke AG
•
Filing: 1936-10-07
•
Granted: 1938-11-01
•
Expires: 1956-10-07
Abstract
No abstract record available.
Inventors
- 👤 Ziebolz Herbert
- 👤 Hubert J Velten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:02
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/60; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0363; Y10T137/2496; Y10T137/2499; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/7793; Y10T137/7837; Y10T137/7869; Y10T137/7875; Y10T137/8593; Y10T137/87265; Y10T137/87281; Y10T137/8733; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-10-31 | 1942-05-02 | 1942-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-31 | 1946-05-02 | 1946-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-31 | 1950-05-02 | 1950-11-01 | $7700.00 | Window Closed / Lapsed |