Patent US2517693A successfully refreshed from Google Patents.
US2517693A
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Assignee: Lockheed Martin Corp
•
Filing: 1945-11-03
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Granted: 1950-08-08
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Expires: 1965-11-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Mead
- 👤 Ray T Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:02
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/10; H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/306; Y; Y10; Y10S; Y10S277/00; Y10S277/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US394156A
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US1287285A
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US1336030A
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US1697814A
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US1801995A
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US1747592A
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US1800578A
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US1875936A
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US2055904A
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US2039009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |