US3804647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous glass supports for automotive emissions control catalysts
Assignee: Corning Glass Works
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Filing: 1971-12-15
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Granted: 1974-04-16
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Expires: 1991-12-15
Abstract
Abstract This invention relates to a stabilized porous glass support material for noble metal and base metal catalysts, useful in the catalytic conversion of harmful automotive exhaust emissions. A process for preparing the support material and methods for using it in automotive pollution control systems are also described.
Inventors
- 👤 T Elmer
- 👤 R Tischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:58
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/60; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01J23/00; B01J23/02; B01J23/04; B01J37/00; B01J37/08; B01J35/61; B01J35/613; B01J35/64; B01J35/647
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
25 words
A stabilized catalyst support material according to claim 1 which additionally contains an alumina binder addition comprising about 5-30 percent by weight of said material.
References Cited (Backward Citations)
US2106744A
Cited
US3054221A
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US3113855A
Cited
US3489579A
Cited
US3485687A
Cited
GB1197067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |