US2622254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable and manually operable apparatus for the cleaning and/or finishing of carpeted or uncarpeted floors
Assignee: Individual
•
Filing: 1947-11-18
•
Granted: 1952-12-23
•
Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 Mendelson Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:25
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4063; A47L11/4069; A47L11/02; A47L11/10; A47L11/14; A47L11/18; A47L11/185; A47L11/24; A47L11/4052; A47L11/4055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673529A
Cited
GB190801567A
Cited
US1176990A
Cited
US1455746A
Cited
US1546531A
Cited
US1670934A
Cited
US1554875A
Cited
US1687283A
Cited
FR722755A
Cited
US2248699A
Cited
US2317843A
Cited
US2333829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |