US2675246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel raising and lowering mechanism for floor polishing machines and the like
Assignee: Nilfisk Inc
•
Filing: 1951-09-20
•
Granted: 1954-04-13
•
Expires: 1971-09-20
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Arones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:04
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4052; A47L11/4055; A47L11/4072; B; B60; B60B; B60B33/00; B60B33/04; B60B33/06; Y; Y10; Y10S; Y10S15/00; Y10S15/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |