Patent US2536902A successfully refreshed from Google Patents.
US2536902A
Expired / Lapsed
US
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Combined brushing and vacuum cleaning apparatus
Assignee: Individual
•
Filing: 1947-01-09
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Granted: 1951-01-02
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Expires: 1967-01-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Beckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:45
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A47L11/02; A47L11/20; A47L11/202; A47L11/4044; A47L11/4063; A47L11/4069; A47L5/00; A47L5/12; A47L5/14; A47L5/22; A47L5/28; A47L5/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US598602A
Cited
US664135A
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US1033164A
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US1030392A
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US1259326A
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US1205574A
Cited
US1211902A
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US1263112A
Cited
US1656031A
Cited
FR722755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |