Patent US3761954A successfully refreshed from Google Patents.
US3761954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stylus
Assignee: Xerox Corp
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Filing: 1971-10-06
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Granted: 1973-09-25
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Expires: 1991-10-06
Abstract
Abstract A stylus which includes a conductive blank and at least three conductive wires soldered onto the blank to form the writing tip of the stylus. The wires are placed parallel to each other and the tip ends thereof are so aligned that they form a line transverse to the direction of the travel of the stylus as it travels over a recording medium. The wires are preferably bonded to each other and held in a predetermined spatial relationship by a cured epoxy resin.
Inventors
- 👤 R Hansen
- 👤 V Gulati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:29
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/032; B; B41; B41J; B41J2/00; B41J2/385; B41J2/39; B41J2/395
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
27 words
The stylus according to claim 1 wherein: said stylus includes an epoxy resin maintaining the longitudinal portions of the conductive wires together in a predetermined spatial relationship.
Claim 2
Dependent Claim
32 words
The stylus according to claim 2 wherein said conductive wires are made of iridium wires of about 5 mils in diameter and spaced from each other about one thousandths of an inch.
Claim 3
Dependent Claim
53 words
The stylus according to claim 3, wherein each of said iridium conductive wires is in a straight line and positioned in operation to form an angle between 13* and 17* from the normal to the surface of the recording medium for providing smooth tracking and optimal electrical and mechanical contact with the medium.
Claim 4
Dependent Claim
48 words
The stylus according to claim 1 wherein said first strip has an outer end bent at approximately a 45* angle with respect to an inner end thereof, said foil strips are bonded to opposite sides of said inner end, while said wires are bonded to said outer end.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |