US2490224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mop head frame for interchangeable mop heads
Assignee: Individual
•
Filing: 1946-01-08
•
Granted: 1949-12-06
•
Expires: 1966-01-08
Abstract
No abstract record available.
Inventors
- 👤 Matthew C Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; A47L13/25; A47L13/252
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US365329A
Cited
US1075208A
Cited
US1158846A
Cited
US1420180A
Cited
US1470014A
Cited
US1550845A
Cited
US1643637A
Cited
US1672890A
Cited
US1897726A
Cited
US1966633A
Cited
US1989825A
Cited
US2043464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |