Patent US2225845A successfully refreshed from Google Patents.
US2225845A
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Assignee: Lockheed Martin Corp
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Filing: 1938-11-28
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Granted: 1940-12-24
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Expires: 1958-11-28
Abstract
No abstract record available.
Inventors
- 👤 Robert R Richolt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/14; F16G11/04; F16G11/044; F16G11/046; Y; Y10; Y10S; Y10S254/00; Y10S254/15; Y10T; Y10T24/00; Y10T24/39; Y10T24/3969; Y10T24/3971; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/1884; Y10T74/18856; Y10T74/1888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-24 | 1944-06-24 | 1944-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-24 | 1948-06-24 | 1948-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-24 | 1952-06-24 | 1952-12-24 | $7700.00 | Window Closed / Lapsed |