US3266893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing porous sinterable articles
Assignee: Exide Technologies LLC
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Filing: 1965-06-17
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Granted: 1966-08-16
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Expires: 1985-06-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Duddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:55
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8878; H01M4/8882; H01M4/8885; B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/1121; H01M4/8663; H01M4/8668; H01M4/8875; H01M4/90; H01M4/9041; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A METHOD OF MAKING ELECTRODES WHICH COMPRISES THE STEPS OF INTIMATELY AND HOMOGENEOUSLY MIXING A PLASTICZED FIRST INSOLUBLE THERMOPLASTIC RESIN, A PLASTICIZED SECOND THERMOPLASTIC RESIN SUBSTANTIALLY INSOLUBLE IN SAID FIRST THERMOPLASTIC RESIN AND ASINTERABLE METALLIC ELECTRODE MATERIAL IN POWDERED FORM TO PRODUCE A PLASTICIZED MASS, SAID FIRST THERMOPLASTIC RESIN BEING VOLATILE AT A TEMPERATURE AT OR BELOW THE SINTERING TEMPERATURE OF SAID ELECTRODE MATERIAL, BOTH OF SAID RESINS HAVING SUBSTANTIALLY SIMILAR PHYSICAL PROPERTIES IN THE PLASTIC STATE, SHAPING SAID MASS, SUBJECTING SAID SHAPED MASS TO A SOLVENT IN WHICH SAID FIRST THERMOPLASTIC RESIN AND SAID ELECTRODE MATERIAL ARE INSOLUBLE AND IN WHICH SAID SECOND THERMOPLASTIC RESIN SOLUBLE TO SUBSTANTIALLY REMOVE FROM SAID SHAPED MASS SAID SECOND THERMOPLASTIC RESIN TO RENDER SAID SHAPED MASS POROUS AND INCREMENTALLY HEATING SAID POROUS SHAPED MASS TO VOLATILIZE IN FRACTIONS SAID FIRST THERMOPLASTIC RESIN IN SUCH A MANNER AS TO AVOID DISRUPTIVE COMBUSTION OF SAID FIRST THERMOPLASTIC RESIN AND TO SINTER SAID ELECTRODE MATERIAL.
Claim 2
Independent Claim
159 words
A METHOD OF MAKING ELECTRODES WHICH COMPRISES THE STEPS OF INTIMATELY AND HOMOGENEOUSLY MIXING A PLASTICZED FIRST INSOLUBLE THERMOPLASTIC RESIN, A PLASTICIZED SECOND THERMOPLASTIC RESIN SUBSTANTIALLY INSOLUBLE IN SAID FIRST THERMOPLASTIC RESIN AND ASINTERABLE METALLIC ELECTRODE MATERIAL IN POWDERED FORM TO PRODUCE A PLASTICIZED MASS, SAID FIRST THERMOPLASTIC RESIN BEING VOLATILE AT A TEMPERATURE AT OR BELOW THE SINTERING TEMPERATURE OF SAID ELECTRODE MATERIAL, BOTH OF SAID RESINS HAVING SUBSTANTIALLY SIMILAR PHYSICAL PROPERTIES IN THE PLASTIC STATE, SHAPING SAID MASS, SUBJECTING SAID SHAPED MASS TO A SOLVENT IN WHICH SAID FIRST THERMOPLASTIC RESIN AND SAID ELECTRODE MATERIAL ARE INSOLUBLE AND IN WHICH SAID SECOND THERMOPLASTIC RESIN SOLUBLE TO SUBSTANTIALLY REMOVE FROM SAID SHAPED MASS SAID SECOND THERMOPLASTIC RESIN TO RENDER SAID SHAPED MASS POROUS AND INCREMENTALLY HEATING SAID POROUS SHAPED MASS TO VOLATILIZE IN FRACTIONS SAID FIRST THERMOPLASTIC RESIN IN SUCH A MANNER AS TO AVOID DISRUPTIVE COMBUSTION OF SAID FIRST THERMOPLASTIC RESIN AND TO SINTER SAID ELECTRODE MATERIAL.
References Cited (Backward Citations)
US1988861A
Cited
US2593943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |