US2861045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic metal-modified resin
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-11-15
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Granted: 1958-11-18
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur W Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J31/10; C; C08; C08F; C08F8/00; C08F8/44; B01J2231/00; B01J2231/30; B01J2231/32; B01J23/00; B01J23/70; B01J23/72
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
A HYDRATION CATALYST WHICH COMPRISES A SOLID SULFONATED CROSS-LINKED POLYMER OF A STYRENE COMPOUND CONTAINING ABOUT 12-16% SULFUR IN THE FORM OF SULFONATE GROUPS, 25-75% OF THE HYDROGEN ION OF SAID SULFONATE GROUPS HAVING BEEN REPLACED BY AN ION OF A METAL SELECTED FROM THE GROUP CONSISTING OF GROUP I AND VIII HEAVY METALS OF THE PERIODIC TABLE, SAID METAL ION BEING SUBSEQUENTLY CONVERTED TO ITS ELEMENTAL STATE.
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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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |