US2907466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable filter device for funnels
Assignee: Individual
•
Filing: 1957-05-08
•
Granted: 1959-10-06
•
Expires: 1977-05-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Beddow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:01
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/085; B01D29/11; B01D29/13; B01D29/15; B01D29/96; B01D2201/00; B01D2201/34
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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |