US3680169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush
Assignee: Individual
•
Filing: 1970-10-12
•
Granted: 1972-08-01
•
Expires: 1990-10-12
Abstract
Abstract A first embodiment of a brush to facilitate the cleaning of teeth of human beings wherein the brush head has a plurality of longitudinal projections which non-removably cooperate with mating recesses within the brush handle. A second embodiment of the brush to facilitate the cleaning of teeth wherein the base of the brush cooperates in a tight fitting manner with the brush handle and is ejectable therefrom by a slidable wedge shaped member.
Inventors
- 👤 Dallas Glen Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:50
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/02; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
A toothbrush comprising: a handle element having a recess formed adjacent one end thereof; a brush head to cooperate with said recess in a tight fitting manner; means movable into contact with said brush head to effect removal of such from said recess; and said means comprises a wedge shaped member connected to said handle element, said wedge shaped member being manually movable between a fore position and an aft position, said fore position being when a portion of said wedge shaped member is located between said brush head and said handle element, said aft position being when said wedge shaped member is not in contactual relationship with said brush head.
Claim 2
Dependent Claim
111 words
A toothbrush comprising: a handle element having a recess formed adjacent one end thereof; a brush head to cooperate with said recess in a tight fitting manner; means movable into contact with said brush head to effect removal of such from said recess; and said means comprises a wedge shaped member connected to said handle element, said wedge shaped member being manually movable between a fore position and an aft position, said fore position being when a portion of said wedge shaped member is located between said brush head and said handle element, said aft position being when said wedge shaped member is not in contactual relationship with said brush head.
Claim 3
Dependent Claim
21 words
A toothbrush as defined in claim 1 wherein: said wedge shaped member is in continuous contactual relation with said handle element.
Claim 4
Dependent Claim
22 words
A toothbrush as defined in claim 2 wherein: said brush head being formed of a less rigid material than said handle element.
Claim 5
Dependent Claim
15 words
A toothbrush as defined in claim 3 wherein: said recess being substantially rectangular in configuration.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |