US4357500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone handset cord anti-twist accessory
Assignee: Individual
•
Filing: 1980-09-26
•
Granted: 1982-11-02
•
Expires: 2000-09-26
Abstract
Abstract The device is an accessory attachment which prevents twisting and entanglement of the commonly used helical extensible telephone cords which connect the telephone handset to the main telephone or base. The device is a somewhat flexible elongate member centrally positioned within the cord and attached to the opposite ends of the cord.
Inventors
- 👤 Robert J. Nilsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:16
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/15
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A telephone accessory attachment device to prevent twisting and entanglement of circular flexed helical extensible electrical telephone handset cords due to its construction and positioning in relationship to said cord comprising: a somewhat flexible elongate member having a length determined by the length of said circular flexed helical extensible electrical telephone handset cord and having a width which is less than the diameter of said cord and having, at opposite ends thereof, means for attachment to said cord; said member to be situated within the central hollow region of said cord and said means for attachment to be attached to said cord at the handset end thereof and at the opposite main telephone base end thereof; said device being constructed such that when so attached to said cord twisting and entanglement of said cord will be prevented.
Claim 2
Dependent Claim
137 words
A telephone accessory attachment device to prevent twisting and entanglement of circular flexed helical extensible electrical telephone handset cords due to its construction and positioning in relationship to said cord comprising: a somewhat flexible elongate member having a length determined by the length of said circular flexed helical extensible electrical telephone handset cord and having a width which is less than the diameter of said cord and having, at opposite ends thereof, means for attachment to said cord; said member to be situated within the central hollow region of said cord and said means for attachment to be attached to said cord at the handset end thereof and at the opposite main telephone base end thereof; said device being constructed such that when so attached to said cord twisting and entanglement of said cord will be prevented.
Claim 3
Dependent Claim
18 words
A telephone accessory attachment device of claim 1 wherein said device is constructed of a flexible plastic material.
Claim 4
Dependent Claim
15 words
A telephone accessory attachment device of claim 1 wherein said flexible plastic material is vinyl.
Claim 5
Dependent Claim
23 words
A telephone accessory attachment device of claim 1 wherein said means for attachment are of the "snap-on" variety permitting ready connection and disconnection.
Claim 6
Dependent Claim
15 words
A telephone accessory attachment device of claim 1 wherein said device is straight and thin.
Claim 7
Dependent Claim
15 words
A telephone accessory attachment device of claim 1 wherein said device is cylindrical tubular shaped.
Claim 8
Dependent Claim
41 words
A telephone accessory attachment device of claim 1 wherein said device is constructed of a flexible plastic vinyl material, and said means for attachment are of the "snap-on" variety permitting ready connection and disconnection, and said device is straight and thin.
References Cited (Backward Citations)
US1730945A
Cited
GB416011A
Cited
US2191011A
Cited
US2206703A
Cited
US2281542A
Cited
US2452431A
Cited
GB676980A
Cited
US2587707A
Cited
US2795641A
Cited
US2880992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |