Patent US2722710A successfully refreshed from Google Patents.
US2722710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Area restricting rug pad for a vacuum nozzle
Assignee: Electrolux Corp
•
Filing: 1952-02-07
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Granted: 1955-11-08
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Expires: 1972-02-07
Abstract
No abstract record available.
Inventors
- 👤 Oliver L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:48
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1790229A
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US2096517A
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US2207582A
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US2220778A
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US2333409A
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US2570347A
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GB665558A
Cited
US2635272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |