US2685547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinum catalysts
Assignee: Evonik Operations GmbH
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Filing: 1952-01-24
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Granted: 1954-08-03
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Expires: 1972-01-24
Abstract
No abstract record available.
Inventors
- 👤 Holzmann Hermann
- 👤 Reinacher Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:42
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A WOVEN PLATINUM WIRE NETWORK SUITABLE FOR HIGH TEMPERATURE CATALYTIC REACTIONS THE WIRES OF WHICH ARE SUBSTANTIALLY COMPOSED OF CRYSTALS HAVING A CROSS-SECTION TRANSVERSE TO THE LONGITUDINAL AXIS OF THE WIRES IDENTICAL WITH THE TRANSVERSE CROSS-SECTION OF THE WIRES AND WHOSE SIZE IN THE DIRECTION OF THE LONGITUDINAL OXIS OF THE WIRES IS A MULTIPLE OF THE DIAMETER OF THE WIRES.
Claim 2
Dependent Claim
61 words
A WOVEN PLATINUM WIRE NETWORK SUITABLE FOR HIGH TEMPERATURE CATALYTIC REACTIONS THE WIRES OF WHICH ARE SUBSTANTIALLY COMPOSED OF CRYSTALS HAVING A CROSS-SECTION TRANSVERSE TO THE LONGITUDINAL AXIS OF THE WIRES IDENTICAL WITH THE TRANSVERSE CROSS-SECTION OF THE WIRES AND WHOSE SIZE IN THE DIRECTION OF THE LONGITUDINAL OXIS OF THE WIRES IS A MULTIPLE OF THE DIAMETER OF THE WIRES.
References Cited (Backward Citations)
US2142660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |