US2426795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic floor sweeper
Assignee: Individual
•
Filing: 1945-10-11
•
Granted: 1947-09-02
•
Expires: 1965-10-11
Abstract
No abstract record available.
Inventors
- 👤 Robert L Sjostrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:03
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/40; A47L13/41; B; B03; B03C; B03C1/00; B03C1/02; B03C1/025; B03C1/031; B03C1/033; B03C1/0332; B03C1/28; B03C1/30; B03C2201/00; B03C2201/20; Y; Y10; Y10S; Y10S425/00; Y10S425/033
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) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |