Patent US2524928A successfully refreshed from Google Patents.
US2524928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor cleaning machine
Assignee: Individual
•
Filing: 1946-04-12
•
Granted: 1950-10-10
•
Expires: 1966-04-12
Abstract
No abstract record available.
Inventors
- 👤 Elwood T Platz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:42
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/02; A47L11/10; A47L11/14; A47L11/4036; A47L11/4047; A47L11/408; A47L11/4083; A47L11/4088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310296A
Cited
US1144292A
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US1296868A
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US1333226A
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US1751681A
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US1710550A
Cited
US1752133A
Cited
US1938068A
Cited
US2043878A
Cited
US2093289A
Cited
US2236814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |