Patent US3563253A successfully refreshed from Google Patents.
US3563253A
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Toothpicks
Assignee: SANODENT KONG OSCARSGT 45 BERGEN NORWAY A CORP OF NORWAY AS
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Filing: 1968-06-12
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Granted: 1971-02-16
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Expires: 1988-06-12
Abstract
Abstract A toothpick of essentially triangular cross section and tapered at both ends, one or both of the apex edge and base face thereof having an outwardly curved contour. A process for manufacturing said toothpicks involving forming V-shaped grooves of the requisite shape in a raw material and separating the toothpicks therefrom.
Inventors
- 👤 Rolf Barman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
50 words
A toothpick of essentially triangular cross section throughout the length thereof and tapered at both ends, said toothpick having an apex edge, a base face and two sides connecting said face with said apex edge, at least one of said face and said apex edges forming an outwardly curved contour.
Claim 2
Dependent Claim
50 words
A toothpick of essentially triangular cross section throughout the length thereof and tapered at both ends, said toothpick having an apex edge, a base face and two sides connecting said face with said apex edge, at least one of said face and said apex edges forming an outwardly curved contour.
Claim 3
Dependent Claim
18 words
A toothpick according to claim 1, wherein the toothpick tapers more abruptly at one end than the other.
Claim 4
Dependent Claim
24 words
A toothpick according to claim 1, wherein the two sides thereof connecting the base face with the apex edge are of outwardly concave form.
Claim 5
Dependent Claim
24 words
A toothpick according to claim 2, wherein the two sides thereof connecting the base face with the apex edge are of outwardly concave form.
Claim 6
Dependent Claim
11 words
A toothpick accordingly to claim 1, which is made of wood.
Claim 7
Dependent Claim
31 words
A toothpick comprising a plurality of toothpicks according to claim 1, in which the toothpicks are arranged in parallel side-by-side relationship and are interconnected at positions approximately centrally of their lengths.
Claim 8
Dependent Claim
39 words
A toothpick of essentially triangular cross section throughout the length thereof and tapered at both ends, said toothpick having an apex possessing a longitudinally outwardly curved contour, a base face and two sides connecting said face with said apex.
Claim 9
Dependent Claim
39 words
A toothpick of essentially triangular cross section throughout the length thereof and tapered at both ends, said toothpick having an apex possessing a longitudinally outwardly curved contour, a base face and two sides connecting said face with said apex.
Claim 10
Dependent Claim
16 words
A toothpick as set forth in claim 7, wherein said base face has a curved contour.
Claim 11
Dependent Claim
17 words
A toothpick as set forth in claim 7, wherein each said side has an outwardly concave form.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |