US2726306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic resistor
Assignee: Individual
•
Filing: 1953-05-27
•
Granted: 1955-12-06
•
Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Huston E Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/003; H01C7/005; H01C1/00; H01C1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A RESISTOR UNIT OF THE CHARACTER STATED COMPRISING A CORE BODY OF CERAMIC MATERIAL, A CONDUCTOR COATING COMPRISING A MIXTURE OF PHENOL, FORMALDEHYDE RESIN AND GRAPHITE ENCASING SAID BODY, LEADS ATTACHED TO SAID COATING ADJACENT THE ENDS OF SAID BODY AND A SECOND COATING OF PHENOLIC RESIN INTERPOSED BETWEEN SAID CONDUCTOR COATING AND SAID BODY.
Claim 2
Dependent Claim
55 words
A RESISTOR UNIT OF THE CHARACTER STATED COMPRISING A CORE BODY OF CERAMIC MATERIAL, A CONDUCTOR COATING COMPRISING A MIXTURE OF PHENOL, FORMALDEHYDE RESIN AND GRAPHITE ENCASING SAID BODY, LEADS ATTACHED TO SAID COATING ADJACENT THE ENDS OF SAID BODY AND A SECOND COATING OF PHENOLIC RESIN INTERPOSED BETWEEN SAID CONDUCTOR COATING AND SAID BODY.
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) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |