US4137593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush and method of making the same
Assignee: Individual
•
Filing: 1977-06-13
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Granted: 1979-02-06
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Expires: 1997-06-13
Abstract
Abstract A toothbrush and the method of making the same are described which make it possible to produce a toothbrush, having a generally V-shaped head and bristles directed inwardly towards each other at a predetermined angle, in a simple and economical manner. The method involves forming separate and distinct bristle supporting pads which are fixedly mounted on the planar surfaces formed on a V-shaped head portion of the toothbrush. The bristle supporting pads may be at least partially received within recesses on the head portion surfaces and secured thereto by adhesive or other conventional means.
Inventors
- 👤 Robert P. Porper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:50
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/02; A46B5/026; A46B7/00; A46B9/00; A46B9/02; A46B9/04; A46B9/045; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
A toothbrush comprising an elongate handle portion and a head portion at one end of said handle portion, said head portion having two generally planar surfaces defining therebetween a first predetermined angle less than 180° to form a generally V-shaped space; and two bristle supporting pads each fixedly mounted on one of said surfaces to direct the bristles on said pads inwardly into said V-shaped space and towards each other at a second predetermined angle therebetween.
Claim 2
Dependent Claim
76 words
A toothbrush comprising an elongate handle portion and a head portion at one end of said handle portion, said head portion having two generally planar surfaces defining therebetween a first predetermined angle less than 180° to form a generally V-shaped space; and two bristle supporting pads each fixedly mounted on one of said surfaces to direct the bristles on said pads inwardly into said V-shaped space and towards each other at a second predetermined angle therebetween.
Claim 3
Dependent Claim
33 words
A toothbrush as defined in claim 1, wherein each surface of said head portion is provided with a recess configurated and dimensioned to at least partially receive on of said bristle supporting pads.
Claim 4
Dependent Claim
21 words
A toothbrush as defined in claim 2, further comprising adhesive means for fixedly connecting said bristle supporting pads within said recesses.
Claim 5
Dependent Claim
18 words
A toothbrush as defined in claim 1, wherein said bristle supporting pads are snap mounted on said surfaces.
Claim 6
Dependent Claim
22 words
A toothbrush as defined in claim 1, wherein said bristles on said pads are directed substantially normally to said head portion surfaces.
Claim 7
Dependent Claim
19 words
A toothbrush as defined in claim 5, wherein said second predetermined angle is supplemental to said first predetermined angle.
Claim 8
Dependent Claim
25 words
A toothbrush as defined in claim 1, wherein the lengths of the bristles on each pad are substantially equal to form substantially planar application surfaces.
Claim 9
Dependent Claim
34 words
A toothbrush as defined in claim 7, wherein said application surfaces formed by the bristles on said two pads are parallel to the associated head portion surfaces and define therebetween said first predetermined angle.
Claim 10
Dependent Claim
29 words
A toothbrush as defined in claim 8, wherein the innermost bristles on said pads have the ends thereof proximate to each other to form a substantially continuous application surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |