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US2479730A
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Assignee: Lockheed Martin Corp
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Filing: 1944-05-10
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Granted: 1949-08-23
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Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Harvey L Dewar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:19
CPC Classifications
F; F16; F16B; F16B25/00; F16B25/0036; F16B25/0084; F16B25/001; F16B25/0021; F16B25/0042; F16B25/0052; F16B25/10; F16B25/103; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/904; Y10T408/9046
Claims Analysis
Total Claims: 0
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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) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |