US2862223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner assembly and carrying unit
Assignee: Lewyt Corp
•
Filing: 1954-11-24
•
Granted: 1958-12-02
•
Expires: 1974-11-24
Abstract
No abstract record available.
Inventors
- 👤 Carl E Meyerhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:02
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; A47L9/00; A47L9/0009; A47L9/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US288633A
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US1012404A
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US1840138A
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GB355046A
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US2095948A
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US2248585A
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US2232548A
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US2384174A
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US2649606A
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US2614657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |