US2866057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed electrical resistor
Assignee: Sprague Electric Co
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Filing: 1955-04-04
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Granted: 1958-12-23
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Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 David B Peck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:30
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06573; H01C17/06586; C; C08; C08K; C08K3/00; C08K3/02; C08K3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PRINTED RESISTOR WHICH COMPRISES AN INSULATING BASE AND AN ADHERENT LAYER CONSISTING OF A CROSS-LINKED EPOXY RESIN BINDER OBTAINED BY CONDENSING A BISPHENOL WITH AN EPOXIDE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
31 words
A PRINTED RESISTOR WHICH COMPRISES AN INSULATING BASE AND AN ADHERENT LAYER CONSISTING OF A CROSS-LINKED EPOXY RESIN BINDER OBTAINED BY CONDENSING A BISPHENOL WITH AN EPOXIDE OF THE GENERAL FORMULA
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |