US2541282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator valve
Assignee: Leavitt Machine Co
•
Filing: 1946-04-26
•
Granted: 1951-02-13
•
Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Ray D Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:23
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3102; Y10T137/3105; Y10T137/7722; Y10T137/7837; Y10T137/7869
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US27704A
Cited
US1937855A
Cited
US701754A
Cited
US842049A
Cited
US961590A
Cited
US1182089A
Cited
US1450561A
Cited
US1766666A
Cited
US1784664A
Cited
US1871546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |