US4832061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-threaded tooth pick
Assignee: Individual
•
Filing: 1983-04-18
•
Granted: 1989-05-23
•
Expires: 2003-04-18
Abstract
Abstract A double-threaded tooth pick bar formed with a double-threaded portion on one end of the pick bar and a slim portion terminating in a hook at the other end for easier and safer removal of plaque and food debris lodged between the teeth.
Inventors
- 👤 Ying-Teh Hwang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A tooth pick comprising an elongated bar including a first end being tapered to a point and threaded in a double helix and with the threads being wound in opposite directions about the bar, and a second end being tapered to a flat section and terminating with a hook.
Claim 2
Dependent Claim
49 words
A tooth pick comprising an elongated bar including a first end being tapered to a point and threaded in a double helix and with the threads being wound in opposite directions about the bar, and a second end being tapered to a flat section and terminating with a hook.
References Cited (Backward Citations)
US1170523A
Cited
US1369582A
Cited
US1500798A
Cited
GB2016931A
Cited
US4280808A
Cited
US4326547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |