Patent US2825087A successfully refreshed from Google Patents.
US2825087A
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US
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Support for vacuum cleaner accessories
Assignee: Lewyt Corp
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Filing: 1954-05-14
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Granted: 1958-03-04
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Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Carl E Meyerhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/26; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; A47L9/0009; A47L9/0018; A47L9/0027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233167A
Cited
US2248585A
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US2450172A
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US2634189A
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US2534122A
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US2649606A
Cited
US2652902A
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US2740981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |