US3325845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nylon bristle resembling natural bristle
Assignee: International Playtex Inc
•
Filing: 1965-02-26
•
Granted: 1967-06-20
•
Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 Sawkiw Wasyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:12
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/0261; A46D1/0292; A46D1/04; A46D1/05; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2978
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
IN A BRUSH HAVING A BRISTLE-CARRYING PORTION AND A PLURALITY OF TUFTS OF BRISTLES FIXED THEREIN, THE IMPROVEMENT COMPRISING BRISTLES OF A SYNTHETIC PLASTIC MATERIAL, EACH BRISTLE CONSISTING OF A MONOFILAMENT HAVING A PUBESCENT SURFACE, THE SURFACE OF SAID MONOFILAMENT BEING FURTHER CHARACTERIZED BY HAVING SHARP EDGE IRREGULARLY SPACED, RANDOMLY DIRECTED DEPRESSED AREAS OF VARYING SIZES AND SHAPES AND SHARP EDGED IRREGULARLY SPACED, RANDOMLY DIRECTED, RAISED AREAS OF VARYING SIZES AND SHAPES INTERMEDIATE SAID DEPRESSED AREAS.
Claim 2
Dependent Claim
76 words
IN A BRUSH HAVING A BRISTLE-CARRYING PORTION AND A PLURALITY OF TUFTS OF BRISTLES FIXED THEREIN, THE IMPROVEMENT COMPRISING BRISTLES OF A SYNTHETIC PLASTIC MATERIAL, EACH BRISTLE CONSISTING OF A MONOFILAMENT HAVING A PUBESCENT SURFACE, THE SURFACE OF SAID MONOFILAMENT BEING FURTHER CHARACTERIZED BY HAVING SHARP EDGE IRREGULARLY SPACED, RANDOMLY DIRECTED DEPRESSED AREAS OF VARYING SIZES AND SHAPES AND SHARP EDGED IRREGULARLY SPACED, RANDOMLY DIRECTED, RAISED AREAS OF VARYING SIZES AND SHAPES INTERMEDIATE SAID DEPRESSED AREAS.
Claim 3
Independent Claim
104 words
THE METHOD OF MAKING BRUSH BRISTLES OF A SYNTHETIC PLASTIC MATERIAL, SAID BRISTLES HAVING A PUBESCENT, RANDOMLY AND IRREGULARLY SCORED AND RAISED SURFACE, SAID METHOD COMPRISING THE STEPS OF (1) EXTRUDING A PLASTIC MATERIAL INTO A MONOFILAMENT OF PREDETERMINED THICKNESS, AND (2) SCORING SAID MONOFILAMENT WITH A SERIES OF HELICALLY ARRANGED LONGITUDINALLY SPACED ROTATING CUTTING ELEMENTS BY MAINTAINING RELATIVE CONTACTING MOTION BETWEEN SAID MONOFILAMENT AND SAID ROTATING CUTTING ELEMENTS, SAID RELATIVE CONTACTING MOTION BEING IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL AXIS OF SAID SPACED ROTATING CUTTING ELEMENTS, EACH OF SAID CUTTING ELEMENTS HAVING A FLAT TRIANGULAR FRONT FACE AND A SHARP TOP EDGE.
Claim 4
Independent Claim
104 words
THE METHOD OF MAKING BRUSH BRISTLES OF A SYNTHETIC PLASTIC MATERIAL, SAID BRISTLES HAVING A PUBESCENT, RANDOMLY AND IRREGULARLY SCORED AND RAISED SURFACE, SAID METHOD COMPRISING THE STEPS OF (1) EXTRUDING A PLASTIC MATERIAL INTO A MONOFILAMENT OF PREDETERMINED THICKNESS, AND (2) SCORING SAID MONOFILAMENT WITH A SERIES OF HELICALLY ARRANGED LONGITUDINALLY SPACED ROTATING CUTTING ELEMENTS BY MAINTAINING RELATIVE CONTACTING MOTION BETWEEN SAID MONOFILAMENT AND SAID ROTATING CUTTING ELEMENTS, SAID RELATIVE CONTACTING MOTION BEING IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL AXIS OF SAID SPACED ROTATING CUTTING ELEMENTS, EACH OF SAID CUTTING ELEMENTS HAVING A FLAT TRIANGULAR FRONT FACE AND A SHARP TOP EDGE.
References Cited (Backward Citations)
US3112160A
Cited
US1773969A
Cited
US2110371A
Cited
US2245191A
Cited
GB713188A
Cited
FR1043990A
Cited
GB897404A
Cited
GB941679A
Cited
CH383545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |