Patent US3605347A successfully refreshed from Google Patents.
US3605347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor scrubbing brush
Assignee: MULTI CLEAN PRODUCTS Inc
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Filing: 1970-03-27
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Granted: 1971-09-20
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Expires: 1990-03-27
Abstract
Abstract A BRUSH FOR USE IN ROTARY TYPE FLOOR SCRUBBING MACHING COMPRISING A FLAT BACKBOARD HAVING BRISTLES IMPREGNATED WITH AN ABRASIVE MATERIAL ATTACHED TO THE BACKBOARD AND EXTENDING THEREFROM AT RANDOM LENGTHS WITH THE MAJORITY VARYING IN THE RANGE OF 10 PERCENT TO 25 PERCENT FROM THE MEDIAN LENGTH.
Inventors
- 👤 Robert M Barry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:19
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A46; A46B; A46B9/00; A46B9/02; A46D; A46D1/00; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/164
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |