US3415181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep fat filter apparatus
Assignee: WARREN BRUCE HART
•
Filing: 1967-05-04
•
Granted: 1968-12-10
•
Expires: 1987-05-04
Abstract
No abstract record available.
Inventors
- 👤 Hart Warren Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:44
CPC Classifications
B; B01; B01D; B01D37/00; A; A47; A47J; A47J37/00; A47J37/12; A47J37/1223; B01D35/00; B01D35/26; C; C11; C11B; C11B3/00; C11B3/008; Y; Y10; Y10S; Y10S210/00; Y10S210/08
Claims Analysis
Total Claims: 0
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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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |