US2272544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road spraying device
Assignee: Rosco Manufacturing Co
•
Filing: 1938-08-08
•
Granted: 1942-02-10
•
Expires: 1958-08-08
Abstract
No abstract record available.
Inventors
- 👤 Harold A Cederstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:07
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/16; E01C19/17; E01C19/174; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4252; Y10T137/4259; Y10T137/6416; Y10T137/6579; Y10T137/6851; Y10T137/6855; Y10T137/6881; Y10T137/8593; Y10T137/85954; Y10T137/85962; Y10T137/85978; Y10T137/85986; Y10T137/85994; Y10T137/86236; Y10T137/87249
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-02-09 | 1945-08-11 | 1946-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-09 | 1949-08-11 | 1950-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-09 | 1953-08-11 | 1954-02-10 | $7700.00 | Window Closed / Lapsed |