US3239789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded conductive plastic resistor and method of making same
Assignee: ACE ELECTRONICS ASSOCIATES Inc
•
Filing: 1963-10-10
•
Granted: 1966-03-08
•
Expires: 1983-10-10
Abstract
No abstract record available.
Inventors
- 👤 Daniel N Shaheen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:47
CPC Classifications
H; H01; H01C; H01C17/00; H01C10/00; H01C10/30; H01C10/305; H01C10/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF FORMING A MOLDED RESISTOR UNIT, COMPRISING THE STEPS OF: DEPOSITING A LAYER OF A SOLUTION OF A THERMOSETTING RESIN IN A SOLVENT HAVING A POWDERED CONDUCTIVE MATERIAL HOMOGENEOUSLY ADMIXED THEREWITH, IN A SHAPE APPROXIMATING THAT DESIRED FOR THE RESISTOR; BAKING THE DEPOSITED LAYER AT CURING TEMPERATURE FOR THE RESIN TO EVAPORATE THE SOLVENT AND EFFECT A PARTIAL CURE OF THE RESIN; AND COMOLDING IN A MOLD AND FULLY CURING SAID DEPOSITED LAYER WITH A BASE MATERIAL THEREFOR COMPRISED OF A THERMOSETTING RESIN; SAID COMOLDING STEP BEING EFFECTED WITH A SURFACE OF SAID LAYER IN PRESSURE CONTACT WITH A SMOOTH MOLDING SURFACE OF THE MOLD.
Claim 2
Independent Claim
107 words
A METHOD OF FORMING A MOLDED RESISTOR UNIT, COMPRISING THE STEPS OF: DEPOSITING A LAYER OF A SOLUTION OF A THERMOSETTING RESIN IN A SOLVENT HAVING A POWDERED CONDUCTIVE MATERIAL HOMOGENEOUSLY ADMIXED THEREWITH, IN A SHAPE APPROXIMATING THAT DESIRED FOR THE RESISTOR; BAKING THE DEPOSITED LAYER AT CURING TEMPERATURE FOR THE RESIN TO EVAPORATE THE SOLVENT AND EFFECT A PARTIAL CURE OF THE RESIN; AND COMOLDING IN A MOLD AND FULLY CURING SAID DEPOSITED LAYER WITH A BASE MATERIAL THEREFOR COMPRISED OF A THERMOSETTING RESIN; SAID COMOLDING STEP BEING EFFECTED WITH A SURFACE OF SAID LAYER IN PRESSURE CONTACT WITH A SMOOTH MOLDING SURFACE OF THE MOLD.
References Cited (Backward Citations)
USRE18818E
Cited
US2056928A
Cited
US1889379A
Cited
US1992529A
Cited
US2134870A
Cited
US2700719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |