US2475155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing a supported platinum metal catalyst
Assignee: Baker and Co Inc
•
Filing: 1945-12-27
•
Granted: 1949-07-05
•
Expires: 1965-12-27
Abstract
No abstract record available.
Inventors
- 👤 Edgar F Rosenblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:55
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; B01J23/42; B01J37/00; B01J37/02; B01J37/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1111502A
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US1215396A
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US1828380A
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US1739306A
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GB436906A
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GB477026A
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US2200522A
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US2333216A
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US2330664A
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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) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |