US2831087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse post
Assignee: SUNDT ENGINEERING Co
•
Filing: 1954-10-06
•
Granted: 1958-04-15
•
Expires: 1974-10-06
Abstract
No abstract record available.
Inventors
- 👤 Edward V Sundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:17
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/20; H01H85/54; H01H85/547
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US946251A
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FR710003A
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US2113535A
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US2207507A
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US2207837A
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US2195999A
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US2258231A
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US2424405A
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US2441907A
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GB597011A
Cited
GB641917A
Cited
US2668316A
Cited
US2668888A
Cited
US2742636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |