Patent US6667435B1 successfully refreshed from Google Patents.
US3072945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush element and belt brush construction
Assignee: Osborn Manufacturing Corp
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Filing: 1957-02-18
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Granted: 1963-01-15
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Ruben O Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:13
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A BRUSH ELEMENT COMPRISING A PAIR OF STEM WIRES HAVING OPPOSED SUBSTANTIALLY FLAT FACES OF SUBSTANTIAL WIDTH, AND FLAT-TUFTS OF BRUSH MATERIAL CLAMPED THEREBETWEEN AT SPACED INTERVALS BETWEEN STRAIGHT PORTIONS OF SAID WIRES, SAID WIRES BEING SECURED TOGETHER INTERMEDIATE SAID TUFTS, SAID TUFTS PROJECTING A SUBSTANTIAL DISTANCE IN ONE DIRECTION FROM SAID WIRES IN PARALLEL ALIGNMENT TO FORM A BRUSHING FACE AND PROJECTING A MUCH SHORTER DISTANCE IN THE OTHER DIRECTION, THE BRUSH MATERIAL OF
Claim 2
Dependent Claim
75 words
A BRUSH ELEMENT COMPRISING A PAIR OF STEM WIRES HAVING OPPOSED SUBSTANTIALLY FLAT FACES OF SUBSTANTIAL WIDTH, AND FLAT-TUFTS OF BRUSH MATERIAL CLAMPED THEREBETWEEN AT SPACED INTERVALS BETWEEN STRAIGHT PORTIONS OF SAID WIRES, SAID WIRES BEING SECURED TOGETHER INTERMEDIATE SAID TUFTS, SAID TUFTS PROJECTING A SUBSTANTIAL DISTANCE IN ONE DIRECTION FROM SAID WIRES IN PARALLEL ALIGNMENT TO FORM A BRUSHING FACE AND PROJECTING A MUCH SHORTER DISTANCE IN THE OTHER DIRECTION, THE BRUSH MATERIAL OF
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |