US2981490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal impacting apparatus and support therefor
Assignee: Entoleter Inc
•
Filing: 1957-12-27
•
Granted: 1961-04-25
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Kurt H Conley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/1835; F; F16; F16J; F16J15/00; F16J15/16; F16J15/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1575492A
Cited
US1228338A
Cited
US1363786A
Cited
US1275122A
Cited
US1350691A
Cited
US1642085A
Cited
US1743911A
Cited
US2018372A
Cited
GB376760A
Cited
US1860955A
Cited
US2139113A
Cited
US2221593A
Cited
US2242722A
Cited
US2360086A
Cited
US2594197A
Cited
US2661666A
Cited
FR1019063A
Cited
US2600991A
Cited
US2762663A
Cited
US2705653A
Cited
US2879004A
Cited
US2810156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |