US2941822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Whirlpool Corp
•
Filing: 1957-08-26
•
Granted: 1960-06-21
•
Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Norman A Moecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:18
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/24; A47L9/242; A47L9/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US582804A
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US1309780A
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US1311834A
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US720688A
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US1273174A
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US1486707A
Cited
US1879364A
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US2081571A
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US2269560A
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US2636068A
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US2793055A
Cited
US2788243A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |