US2824335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile suction floor cleaner
Assignee: HANDLING DEVICES CO Inc
•
Filing: 1955-02-17
•
Granted: 1958-02-25
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Alexander W Moffat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1399165A
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US1971349A
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US2361909A
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CH247221A
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US2534808A
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US2698672A
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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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |