US3481254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite structure
Assignee: RTX Corp
•
Filing: 1967-08-14
•
Granted: 1969-12-02
•
Expires: 1987-08-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Wetherbee Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F15; F15B; F15B15/00; F15B15/08; F15B15/10; F15B15/103; F16L11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1184371A
Cited
US1205984A
Cited
US1685709A
Cited
US1878885A
Cited
US2363967A
Cited
US2642091A
Cited
US2767741A
Cited
US3075624A
Cited
US3216876A
Cited
US3357456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |