US2619974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse flow surge washer
Assignee: Individual
•
Filing: 1946-10-10
•
Granted: 1952-12-02
•
Expires: 1966-10-10
Abstract
No abstract record available.
Inventors
- 👤 John H Daley
- 👤 Elmer W Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:40
CPC Classifications
A; A47; A47L; A47L15/00; Y; Y10; Y10S; Y10S119/00; Y10S119/01; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2668; Y10T137/2673; Y10T137/2931; Y10T137/3115; Y10T137/3124
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US827494A
Cited
US1472839A
Cited
US1549952A
Cited
US2145540A
Cited
US2035513A
Cited
US2215018A
Cited
US2213069A
Cited
US2390757A
Cited
US2243446A
Cited
US2233852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |