US2780828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner with bag adapter
Assignee: Hoover Co
•
Filing: 1952-11-04
•
Granted: 1957-02-12
•
Expires: 1972-11-04
Abstract
No abstract record available.
Inventors
- 👤 George A Brace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:20
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; A47L5/00; A47L5/12; A47L5/22; A47L5/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1586868A
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US1553076A
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US1821824A
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US2009455A
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US1861402A
Cited
US2099413A
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US1939579A
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US2123914A
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US2187052A
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US2232375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |