US4016714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
String construction
Assignee: Ashaway Line and Twine Manufacturing Co
•
Filing: 1975-05-21
•
Granted: 1977-04-12
•
Expires: 1995-05-21
Abstract
Abstract A string construction for athletic rackets, musical instruments and the like, comprising a thermoplastic core coated with a cationic lubricating agent, and a second coating comprising a thermoplastic resin surrounding and bonded to said first coating.
Inventors
- 👤 Julian Titsworth Crandall
- 👤 Steven Julian Crandall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:36
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/14; D07B1/141; D07B1/142; A; A63; A63B; A63B51/00; A63B51/02; A63B51/026; D02; D02G; D02G3/00; D02G3/22; D02G3/40; D02G3/404; D02G3/44; D02G3/444; G; G10; G10D; G10D3/00; G10D3/10; D07B2201/00; D07B2201/20; D07B2201/2015; D07B2201/2034; D07B2201/2042; D07B2201/2044; D07B2201/2045; D07B2201/2095; D07B2201/2097; D07B2201/2098; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
39 words
A string construction comprising as it essential ingredients a thermoplastic core, a first coating on said core consisting of a cured cationic lubricating agent, and a second coating comprising a thermoplastic resin surrounding and bonded to said first coating.
Claim 2
Dependent Claim
39 words
A string construction comprising as it essential ingredients a thermoplastic core, a first coating on said core consisting of a cured cationic lubricating agent, and a second coating comprising a thermoplastic resin surrounding and bonded to said first coating.
Claim 3
Dependent Claim
22 words
In the string of claim 1, said core consisting of one of the following thermoplastic materials: nylon, polyester, fiberglass or aramid fibers.
Claim 4
Dependent Claim
13 words
In the string of claim 1, said thermoplastic resin comprising a nylon formulation.
Claim 5
Dependent Claim
16 words
In the string of claim 1, said core comprising a plurality of individual ends twisted together.
Claim 6
Dependent Claim
16 words
In the string of claim 1, said core comprising a plurality of individual ends braided together.
Claim 7
Dependent Claim
36 words
In the string of claim 1, an armor sheath of thermoplastic surrounding said second coating, and a further coating of said thermoplastic resin surrounding said armor sheath and integrated with said sheath and said second coating.
Claim 8
Dependent Claim
12 words
In the string of claim 6, said armor sheath comprising a braid.
Claim 9
Dependent Claim
13 words
In the string of claim 6, said armor sheath comprising a spiral wrap;
Claim 10
Dependent Claim
71 words
In the string of claim 1, said core comprising a plurality of individual ends twisted together, said ends consisting of one of the following: nylon, polyester, fiberglass or aramid fibers, said thermoplastic resin comprising a nylon formulation, and a thermoplastic armor sheath consisting essentially of nylon surrounding said second coating, and a further coating of said thermoplastic resin surrounding said armor sheath and integrated with said sheath and said second coating.
References Cited (Backward Citations)
US2401291A
Cited
US3605399A
Cited
US3755165A
Cited
US3738096A
Cited
US3745756A
Cited
US3771305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |