US3092509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber reinforced battery separators
Assignee: Oldham Crompton Batteries Ltd
•
Filing: 1958-08-13
•
Granted: 1963-06-04
•
Expires: 1978-08-13
Abstract
No abstract record available.
Inventors
- 👤 Booth Frank
- 👤 Latham Michael Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:18
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/24; H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/431; H01M50/434; H01M50/437; H01M50/44; H01M50/443; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PROCESS OF MANUFACTURING ELECTRIC STORAGE BATTERY SEPARATOR MATERIAL FROM BASE MATERIAL CONSISTING OF GLASS FIBRES BONDED WITH A CURVED ACID RESISTANT TERMOSETTING RESIN, COMPRISNG PASTING ONE SIDE OF THE BONDED GLASS FIBER BASE WITH A PASTE CONSISTING OF A THERMOPLASTIC RESIN POWDER WHICH IS A MIXTURE OF 10 PARTS BY WEIGHT OF PARTCLES HAVING AN AVERAGE DIAMETER OF AT LEAST 10 MICRONS AND 1 PART BY WEIGHT OF PARTICLES HAVING AN AVERAGE DIAMTTER OF FROM 1/2 TO 1 MICRON, A THICKENING AGENT SELECTED FROM THE GROUP CONSISTING OF CARBOXYALKYL CELLULOSES, ALIGNATES, AND ACID-RESISTANT RESINS, AND A SOLVENT FOR THE THICKENING AGENT, FORCING THE PASTE INTO THE BASE TO IMPREGNATE THE BASE UNIFORMLY WITH THE PASTE, AND HEATING THE IMPREGNATBASE TO A TEMPERATURE SUFFICIENT TO EVAPORATE THE SOLVENT FOR THE THICKENING AGENT AND TO SINTER TOGETHER THE THERMOPLASTIC PARTICLES TO PRODUCE A SINTERED POROUS STRUCTURE OF
Claim 2
Dependent Claim
146 words
A PROCESS OF MANUFACTURING ELECTRIC STORAGE BATTERY SEPARATOR MATERIAL FROM BASE MATERIAL CONSISTING OF GLASS FIBRES BONDED WITH A CURVED ACID RESISTANT TERMOSETTING RESIN, COMPRISNG PASTING ONE SIDE OF THE BONDED GLASS FIBER BASE WITH A PASTE CONSISTING OF A THERMOPLASTIC RESIN POWDER WHICH IS A MIXTURE OF 10 PARTS BY WEIGHT OF PARTCLES HAVING AN AVERAGE DIAMETER OF AT LEAST 10 MICRONS AND 1 PART BY WEIGHT OF PARTICLES HAVING AN AVERAGE DIAMTTER OF FROM 1/2 TO 1 MICRON, A THICKENING AGENT SELECTED FROM THE GROUP CONSISTING OF CARBOXYALKYL CELLULOSES, ALIGNATES, AND ACID-RESISTANT RESINS, AND A SOLVENT FOR THE THICKENING AGENT, FORCING THE PASTE INTO THE BASE TO IMPREGNATE THE BASE UNIFORMLY WITH THE PASTE, AND HEATING THE IMPREGNATBASE TO A TEMPERATURE SUFFICIENT TO EVAPORATE THE SOLVENT FOR THE THICKENING AGENT AND TO SINTER TOGETHER THE THERMOPLASTIC PARTICLES TO PRODUCE A SINTERED POROUS STRUCTURE OF
References Cited (Backward Citations)
CA523464A
Cited
US2633434A
Cited
US2297248A
Cited
US2526591A
Cited
US2371868A
Cited
US2465493A
Cited
US2591755A
Cited
US2478186A
Cited
GB678719A
Cited
GB674684A
Cited
US2653985A
Cited
US2607810A
Cited
US2664376A
Cited
GB749778A
Cited
US2889390A
Cited
US2929005A
Cited
US2847496A
Cited
US2930106A
Cited
US2973398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |