US2508762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling the flow of liquids
Assignee: EIDP Inc
•
Filing: 1946-11-05
•
Granted: 1950-05-23
•
Expires: 1966-11-05
Abstract
No abstract record available.
Inventors
- 👤 Walter C Lapple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:58
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/03; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/4673; Y10T137/479; Y10T137/8593; Y10T137/85954; Y10T137/86187; Y10T137/86228; Y10T137/877; Y10T137/87788
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) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |