US2889007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease extracting ventilator for kitchen ranges
Assignee: DOHRMANN HOTEL SUPPLY CO
•
Filing: 1955-12-27
•
Granted: 1959-06-02
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Lunde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/26; F; F24; F24C; F24C15/00; F24C15/20; Y; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE82993C
Cited
US1302716A
Cited
US2341245A
Cited
US2392038A
Cited
US2532420A
Cited
US2793712A
Cited
US2792909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |