US2031374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust mop cleaner and receptacle
Assignee: Individual
•
Filing: 1932-10-08
•
Granted: 1936-02-18
•
Expires: 1952-10-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Liedtke
- 👤 Carl O Wolen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/50; A47L13/502; Y; Y10; Y10S; Y10S55/00; Y10S55/08
Claims Analysis
Total Claims: 0
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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) | 1939-02-17 | 1939-08-19 | 1940-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-17 | 1943-08-19 | 1944-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-17 | 1947-08-19 | 1948-02-18 | $7700.00 | Window Closed / Lapsed |