Patent US2564845A successfully refreshed from Google Patents.
US2564845A
Expired / Lapsed
US
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Disposable bag for vacuum cleaners
Assignee: Marathon Corp
•
Filing: 1946-03-07
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Granted: 1951-08-21
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Expires: 1966-03-07
Abstract
No abstract record available.
Inventors
- 👤 Jr George W Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:57
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; Y; Y10; Y10S; Y10S55/00; Y10S55/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1156235A
Cited
US1504136A
Cited
US1553076A
Cited
US1918764A
Cited
US1924249A
Cited
GB512945A
Cited
US2187052A
Cited
US2388279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |