US2641672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductor
Assignee: Northrop Grumman Corp
•
Filing: 1950-05-08
•
Granted: 1953-06-09
•
Expires: 1970-05-08
Abstract
No abstract record available.
Inventors
- 👤 Norman C Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/006; H01B; H01B1/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1445610A
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US1702062A
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GB268840A
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US1983267A
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US2021661A
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US2328626A
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US2292026A
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US2433384A
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US2485737A
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US2475379A
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US2538945A
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US2547022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |