US2418325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft landing gear
Assignee: Lockheed Martin Corp
•
Filing: 1941-12-06
•
Granted: 1947-04-01
•
Expires: 1961-12-06
Abstract
No abstract record available.
Inventors
- 👤 John B Wassall
- 👤 Wilfred N Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:15
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/02; B64C25/08; B64C25/10; B64C25/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US394314A
Cited
US366870A
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US824425A
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US1036071A
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US1425086A
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US1830636A
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US1619474A
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US1619475A
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US1679762A
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US1617903A
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US1773794A
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US1840311A
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US1776963A
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US1934691A
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US2050421A
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US2069540A
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US2202960A
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US2220920A
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US2274734A
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US2293555A
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US2279074A
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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) | 1950-03-31 | 1950-09-30 | 1951-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-31 | 1954-09-30 | 1955-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-31 | 1958-09-30 | 1959-04-01 | $7700.00 | Window Closed / Lapsed |