Patent US1947136A successfully refreshed from Google Patents.
US1947136A
Expired / Lapsed
US
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Floor cleaning device
Assignee: MOORHEAD DEV CO Inc
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Filing: 1930-12-05
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Granted: 1934-02-13
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Expires: 1950-12-05
Abstract
No abstract record available.
Inventors
- 👤 Moorhead Albert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2857; A47L11/00; A47L11/02; A47L11/10; A47L11/14; A47L11/18; A47L11/40; A47L11/4036; A47L11/4041; A47L11/4052; A47L11/4055; A47L11/4058; A47L11/4063; A47L11/4069; A47L9/24; A47L9/242; A47L9/2805; A47L9/2821; A47L9/2836; A47L9/2847; A47L9/2852
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-02-12 | 1937-08-14 | 1938-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-02-12 | 1941-08-14 | 1942-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-02-12 | 1945-08-14 | 1946-02-13 | $7700.00 | Window Closed / Lapsed |