Patent US2508015A successfully refreshed from Google Patents.
US2508015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator blowoff valve
Assignee: Leavitt Machine Co
•
Filing: 1946-09-12
•
Granted: 1950-05-16
•
Expires: 1966-09-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:10
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K2200/00; F16K2200/40; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1314566A
Cited
US569943A
Cited
US123098A
Cited
US820146A
Cited
US848079A
Cited
US920716A
Cited
US934286A
Cited
US1091463A
Cited
US1207593A
Cited
US1247533A
Cited
US1764181A
Cited
US1847964A
Cited
US1959314A
Cited
US2165649A
Cited
US2074245A
Cited
US2376124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |