US2815033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternate flow control for fluid streams
Assignee: Akzo Nobel UK PLC
•
Filing: 1954-02-08
•
Granted: 1957-12-03
•
Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Richard H Braunlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0352; Y10T137/8593; Y10T137/87571; Y10T137/87652; Y10T137/8766
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US866112A
Cited
US976148A
Cited
US1613000A
Cited
FR517897A
Cited
US1955825A
Cited
US1975153A
Cited
US2007871A
Cited
US2313060A
Cited
US2421475A
Cited
US2506415A
Cited
US2621596A
Cited
US2500816A
Cited
US2598066A
Cited
US2650168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |