US2586646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1946-03-29
•
Granted: 1952-02-19
•
Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Matthew P Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:39
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0604; B; B62; B62D; B62D7/00; B62D7/16; C; C08; C08J; C08J9/00; C08J9/16; C08J9/20; F16C2326/00; F16C2326/20; F16C2326/24; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US659874A
Cited
US985518A
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US1077410A
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US986274A
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US1264742A
Cited
US1555822A
Cited
US1639336A
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GB280933A
Cited
FR771366A
Cited
US2076028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |