Patent US1601087A successfully refreshed from Google Patents.
US1601087A
Expired / Lapsed
US
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Floor-polishing attachment for vacuum cleaners
Assignee: RICHARD F STALEY
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Filing: 1925-07-22
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Granted: 1926-09-28
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Expires: 1945-07-22
Abstract
No abstract record available.
Inventors
- 👤 Frank I Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:43
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/20; A47L11/204; A47L11/206; A47L11/2065; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4094
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) | 1929-09-27 | 1930-03-29 | 1930-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-09-27 | 1934-03-29 | 1934-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-09-27 | 1938-03-29 | 1938-09-28 | $7700.00 | Window Closed / Lapsed |