US2662671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stock bin
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1949-08-27
•
Granted: 1953-12-15
•
Expires: 1969-08-27
Abstract
No abstract record available.
Inventors
- 👤 Louis T Almas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:03
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54; B65D90/62; B65D90/623
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US295233A
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US415010A
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US508326A
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US596133A
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US790852A
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US954850A
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US1214045A
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US1351251A
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US1409398A
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US1456630A
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US1481538A
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US2344755A
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US2440056A
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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) | 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 |