US2586713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the rate of pouring fluid material from one container into another
Assignee: Babcock and Wilcox Co
•
Filing: 1949-07-29
•
Granted: 1952-02-19
•
Expires: 1969-07-29
Abstract
No abstract record available.
Inventors
- 👤 Temple W Ratcliffe
- 👤 Sidley O Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:30
CPC Classifications
B; B22; B22D; B22D39/00; B22D11/00; B22D11/16; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |