US2453668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic method for the production of porous, catalytic metal
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-06-02
•
Granted: 1948-11-09
•
Expires: 1964-06-02
Abstract
No abstract record available.
Inventors
- 👤 Milton M Marisic
- 👤 Thomas F Rutledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/12; C25D5/14; C25D5/60; C25D5/605; C25D5/611; C25D5/623; C25D5/627; Y; Y10; Y10S; Y10S204/00; Y10S204/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2098960A
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US2116927A
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US2206908A
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US2297517A
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US2387772A
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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) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |