US2587038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet sweeper
Assignee: WHITE AIRCRAFT Corp
•
Filing: 1946-08-16
•
Granted: 1952-02-26
•
Expires: 1966-08-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Goodell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:21
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4072; A47L11/32; A47L11/33; A47L11/4013; A47L11/4025; A47L11/4036; A47L11/4041; A47L11/4063; A47L11/4069; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19172; Y10T74/19219; Y10T74/19358; Y10T74/19367
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US21211A
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US173582A
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US186456A
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US295470A
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US412219A
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US756359A
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US972690A
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US2206429A
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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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |