US2866692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic apparatus and method for protecting a metallic catalyst against injury
Assignee: Roehm GmbH Darmstadt
•
Filing: 1955-06-24
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Granted: 1958-12-30
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Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 Carl T Kautter
- 👤 Leitenberger Willigis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:07
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01J35/00; B01J35/50; B01J35/58; B01J35/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD FOR PROTECTING A WIRE MESH CATALYST COMPRISING A METAL OF THE EIGHTH GROUP OF THE PERIODIC SYSTEM AND HAVING AN ATOMIC NUMBER BETWEEN 44 AND 78 IN A REACTION CHAMBER AGAINST INJURY IN A PERIPHERAL ZONE ADJACENT THE WALL OF THE REACTION CHAMBER WHICH COMPRISES
Claim 2
Independent Claim
47 words
A METHOD FOR PROTECTING A WIRE MESH CATALYST COMPRISING A METAL OF THE EIGHTH GROUP OF THE PERIODIC SYSTEM AND HAVING AN ATOMIC NUMBER BETWEEN 44 AND 78 IN A REACTION CHAMBER AGAINST INJURY IN A PERIPHERAL ZONE ADJACENT THE WALL OF THE REACTION CHAMBER WHICH COMPRISES
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |