US2866547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive separator
Assignee: Pangborn Corp
•
Filing: 1956-09-11
•
Granted: 1958-12-30
•
Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Wiltie I Gladfelter
- 👤 Max E Fahrney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
B; B24; B24C; B24C9/00; B24C9/006; B07; B07B; B07B4/00; B07B4/02; B07B4/025; B22; B22C; B22C5/00; B22C5/10; Y; Y02; Y02P; Y02P70/00; Y02P70/10
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |