US3068539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure permanent molding
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1960-08-04
•
Granted: 1962-12-18
•
Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Wilcoxon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:29
CPC Classifications
B; B22; B22D; B22D15/00; B22D15/02; B22D18/00; B22D18/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1997074A
Cited
US1961942A
Cited
US2253822A
Cited
US2415395A
Cited
US2582260A
Cited
US2804666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |