US3002216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control for suction cleaners
Assignee: Hoover Co
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Filing: 1958-09-29
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Granted: 1961-10-03
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Expires: 1978-09-29
Abstract
No abstract record available.
Inventors
- 👤 Justice H Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:34
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2894; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; A47L9/24; A47L9/242; A47L9/246; A47L9/2836; A47L9/2842; A47L9/2857; A47L9/2868; A47L9/2889; H; H01; H01H; H01H13/00; H01H13/02; H01H13/04; H01H13/08; H01H9/00; H01H9/02; H01H9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |