US2537338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial arm
Assignee: Northrop Grumman Corp
•
Filing: 1947-05-13
•
Granted: 1951-01-09
•
Expires: 1967-05-13
Abstract
No abstract record available.
Inventors
- 👤 Fishbein Meyer
- 👤 Michael J Nagy
- 👤 Donald M Threewit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:21
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/54; A61F2/58; A61F2/582
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE302614C
Cited
GB113207A
Cited
FR485583A
Cited
GB127599A
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US1334834A
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GB176530A
Cited
GB187065A
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US1507998A
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US1507682A
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GB336757A
Cited
GB573613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |