US3913596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental hygiene product
Assignee: Individual
•
Filing: 1974-05-23
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Granted: 1975-10-21
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Expires: 1994-05-23
Abstract
Abstract This invention relates to a ribbon of flat material, preferably stiff paper, which is pre-weakened or partially pre-cut along tear lines which define easily separable triangles of the ribbon. The ribbon is rolled within a tubular container for facile removal and separation of one of the separable triangles for a single use as a cleaning device to remove foreign particles which are lodged between human teeth.
Inventors
- 👤 Edward B Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:48
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
36 words
A singly-ply ribbon rolled into a spool and having transverse tear-lines of weakened tensile strength defining triangular tabs of the said ribbon, each of the said tabs having an apex-to-base dimension corresponding to the ribbon width.
Claim 2
Dependent Claim
36 words
A singly-ply ribbon rolled into a spool and having transverse tear-lines of weakened tensile strength defining triangular tabs of the said ribbon, each of the said tabs having an apex-to-base dimension corresponding to the ribbon width.
Claim 3
Dependent Claim
29 words
The ribbon of claim 1 wherein the ribbon is formed from paper having a caliper thickness of 2 to 8 mils and a weight from 20 to 80 pounds.
Claim 4
Dependent Claim
13 words
The ribbon of claim 2 wherein the ribbon is formed from parchment paper.
Claim 5
Dependent Claim
47 words
A portable dental hygiene device comprising a tube, closed at both ends and having a longitudinal slot in one of its side walls; a spool of the ribbon of claim 1 confined within the said tube and having a free end extending through the said longitudinal slot.
Claim 6
Dependent Claim
29 words
The portable dental hygiene device of claim 4 wherein the said tube has a removable cap forming an end wall which engages the side walls of the said tube.
Claim 7
Dependent Claim
14 words
The portable dental hygiene device of claim 4 wherein the said tube is cylindrical.
Claim 8
Dependent Claim
16 words
The portable dental hygiene device of claim 4 wherein the said spool of ribbon is sterilized.
Claim 9
Dependent Claim
18 words
The ribbon of claim 1 wherein the said triangular tabs are isosceles triangles having an acute apex angle.
Claim 10
Dependent Claim
27 words
The paper ribbon of claim 1 wherein the said triangular tabs are right angle triangles having a major leg corresponding to the width of the said ribbon.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |