Patent US5138737A successfully refreshed from Google Patents.
US5138737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush
Assignee: JL3 LLC
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Filing: 1991-04-23
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Granted: 1992-08-18
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Expires: 2011-04-23
Abstract
Abstract A toothbrush having an elongated oval or loop shaped handle having a plurality of brushing projections mounted to a portion of the outer perimeter of the handle. The elongated handle may also be flattened on one end, forming an integral base or stand, or the handle may be bisected into two halves by a cross member. Alternatively, the brushing projections may be mounted to a brush head extending radially outward from the elongated handle.
Inventors
- 👤 Martha M. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:39
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/02; A46B5/023; A47; A47G; A47G21/00; A47G21/02; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
163 words
A toothbrush for use by infants comprising: an elongated, generally triangular-shaped handle having a plurality of sides, said handle including a hollow gripping area for insertion of the fingers of the infant's hand, a brush-supporting portion disposed at one side of said handle intermediately between opposite ends of said handle, and said handle having converging portions extending from said opposite ends into said brush-supporting portion, wherein said gripping area is of generally triangular shape, said handle having a flat base portion on a side opposite to said one side of said handle; and brush means attached to said brush-supporting portion for brushing the teeth of an infant, said handle being longer in a direction transverse to a direction of entry of said brush-supporting portion into the infant's mouth than in a direction parallel to said direction of entry and being longer in said transverse direction than the longest dimension across the infant's mouth to prevent lodging of said handle in the infant's mouth.
Claim 2
Dependent Claim
163 words
A toothbrush for use by infants comprising: an elongated, generally triangular-shaped handle having a plurality of sides, said handle including a hollow gripping area for insertion of the fingers of the infant's hand, a brush-supporting portion disposed at one side of said handle intermediately between opposite ends of said handle, and said handle having converging portions extending from said opposite ends into said brush-supporting portion, wherein said gripping area is of generally triangular shape, said handle having a flat base portion on a side opposite to said one side of said handle; and brush means attached to said brush-supporting portion for brushing the teeth of an infant, said handle being longer in a direction transverse to a direction of entry of said brush-supporting portion into the infant's mouth than in a direction parallel to said direction of entry and being longer in said transverse direction than the longest dimension across the infant's mouth to prevent lodging of said handle in the infant's mouth.
Claim 3
Dependent Claim
34 words
A toothbrush according to claim 1, said converging portions of said handle having sloping surfaces converging into said brush-supporting portion, and said brush means comprising a plurality of bristles extending from said brush-supporting portion.
Claim 4
Dependent Claim
15 words
A toothbrush according to claim 1, including a cross member substantially bisecting said gripping area.
Claim 5
Dependent Claim
33 words
A toothbrush according to claim 1, said brush-supporting portion extending in a direction transverse to said direction of entry and said brush means extending in a direction parallel to said direction of entry.
Claim 6
Dependent Claim
182 words
A toothbrush for use by infants comprising: a generally triangular shaped handle having a plurality of sides, said handle including a hollow gripping area of generally triangular configuration dimensioned for insertion of the fingers of an infant's hand, said handle including a flat base portion along one side of said handle and inclined side portions converging from opposite ends of said base portion into a brush-supporting portion intermediate said opposite ends, and a bar extending across said gripping area; and brush means attached to said brush-supporting portion for brushing the teeth of an infant, said handle being longer in a direction transverse to a direction of entry of said brush-supporting portion into the infant's mouth than in a direction parallel to said direction of entry and longer in said transverse direction than the longest dimension across the infant's mouth to prevent lodging of said handle in the infant's mouth, said brush-supporting portion including a stem extending parallel to said direction of entry and said brush means disposed at a free end of said stem and extending transverse to said direction of entry.
Claim 7
Dependent Claim
182 words
A toothbrush for use by infants comprising: a generally triangular shaped handle having a plurality of sides, said handle including a hollow gripping area of generally triangular configuration dimensioned for insertion of the fingers of an infant's hand, said handle including a flat base portion along one side of said handle and inclined side portions converging from opposite ends of said base portion into a brush-supporting portion intermediate said opposite ends, and a bar extending across said gripping area; and brush means attached to said brush-supporting portion for brushing the teeth of an infant, said handle being longer in a direction transverse to a direction of entry of said brush-supporting portion into the infant's mouth than in a direction parallel to said direction of entry and longer in said transverse direction than the longest dimension across the infant's mouth to prevent lodging of said handle in the infant's mouth, said brush-supporting portion including a stem extending parallel to said direction of entry and said brush means disposed at a free end of said stem and extending transverse to said direction of entry.
Claim 8
Dependent Claim
13 words
A toothbrush according to claim 5, said bar substantially bisecting said gripping area.
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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) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |