US3455845A
Expired / Lapsed
US
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Method for the production of finely-divided catalyst coatings on pore-free surfaces of hydrogen-absorbing metallic substances,and product resulting therefrom
Assignee: VARTA AG
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Filing: 1966-03-15
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Granted: 1969-07-15
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Expires: 1986-03-15
Abstract
No abstract record available.
Inventors
- 👤 Ewald Wicke
- 👤 Albrecht Kuessner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:10
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/48; B01J23/50; B01J35/00; B01J35/30; B01J35/391; B01J35/395; B01J37/00; B01J37/34; C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B3/503; C01B3/505; B01J37/02; B01J37/0215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |