US1581824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for scrubbing, mopping, and polishing floors
Assignee: Individual
•
Filing: 1925-12-07
•
Granted: 1926-04-20
•
Expires: 1945-12-07
Abstract
No abstract record available.
Inventors
- 👤 Amsel Henry
- 👤 Barnett M Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:02
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4077; A47L11/408
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) | 1929-04-19 | 1929-10-19 | 1930-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-19 | 1933-10-19 | 1934-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-19 | 1937-10-19 | 1938-04-20 | $7700.00 | Window Closed / Lapsed |