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Patent US2662480A successfully refreshed from Google Patents.
US2662480A
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Seal
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1950-10-04
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Granted: 1953-12-15
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Expires: 1970-10-04
Abstract
No abstract record available.
Inventors
- 👤 Cliborn Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:38
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412; F16J15/342; F02; F02M; F02M59/00; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F02M2700/00; F02M2700/13; F02M2700/1317
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1876515A
Cited
DE511217C
Cited
US2244450A
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US2420557A
Cited
US2479711A
Cited
US2444713A
Cited
US2538987A
Cited
US2555492A
Cited
US2470419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |