Patent US2519741A successfully refreshed from Google Patents.
US2519741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner with dustpan
Assignee: Individual
•
Filing: 1945-08-25
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Granted: 1950-08-22
•
Expires: 1965-08-25
Abstract
No abstract record available.
Inventors
- 👤 Margaret A Caughey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:52
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/32; A47L9/00; A47L9/10; A47L9/12; A47L9/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1035852A
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US1048009A
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US1447115A
Cited
GB244795A
Cited
US1789048A
Cited
US1785675A
Cited
US1983175A
Cited
US1993231A
Cited
US1916006A
Cited
US2184446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |