US2512932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse combination with replaceable fuse element
Assignee: Individual
•
Filing: 1947-10-20
•
Granted: 1950-06-27
•
Expires: 1967-10-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Gretschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:21
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/044; H01H85/045; H01H85/0454
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1049370A
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US1085960A
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US1224907A
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US1472082A
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GB179773A
Cited
US1743016A
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US1952279A
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US1931206A
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US2012898A
Cited
US2359565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |