US3071637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing porous, electrically conductive sheet material
Assignee: Accumulatoren Fabrik AG
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Filing: 1960-01-27
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Granted: 1963-01-01
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Horn Lutz
- 👤 Dieberg Rolf
- 👤 Philipp Fritz
- 👤 Dickfeldt Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:15
CPC Classifications
D; D06; D06Q; D06Q1/00; D06Q1/04; D01; D01F; D01F11/00; D01F11/10; D01F11/12; D01F11/127; D01F9/00; D01F9/08; D01F9/12; D01F9/14; D01F9/16; H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49801
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A PROCESS OF PRODUCING POROUS, ELECTRICALLY CONDUCTIVE SHEET MATERIAL, THE STEPS WHICH COMPRISE HEATING A FLEECE-LIKE FIBROUS ORGANIC SHEET MATERIAL WITH THE EXCLUSION OF AIR TO CARBONIZING TEMPERATURE TO CAUSE, AT LEAST PARTLY, CARBONIZATION OF THE FIBERS OF SAID SHEET MATERIAL, PRECIPITATING A METAL COATING ON THE SURFACE OF AT LEAST THE SURFACE FIBERS OF THE RESULTING AT LEAST PARTLY CARBONIZED FIBERS, COMPRESSING THE RESULTING POROUS, METALLIZED, ELEC-
Claim 2
Dependent Claim
69 words
IN A PROCESS OF PRODUCING POROUS, ELECTRICALLY CONDUCTIVE SHEET MATERIAL, THE STEPS WHICH COMPRISE HEATING A FLEECE-LIKE FIBROUS ORGANIC SHEET MATERIAL WITH THE EXCLUSION OF AIR TO CARBONIZING TEMPERATURE TO CAUSE, AT LEAST PARTLY, CARBONIZATION OF THE FIBERS OF SAID SHEET MATERIAL, PRECIPITATING A METAL COATING ON THE SURFACE OF AT LEAST THE SURFACE FIBERS OF THE RESULTING AT LEAST PARTLY CARBONIZED FIBERS, COMPRESSING THE RESULTING POROUS, METALLIZED, ELEC-
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |