US3446387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piping arrangement through a double wall chamber
Assignee: National Aeronautics and Space Administration
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Filing: 1967-05-17
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Granted: 1969-05-27
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Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 Stephen P Yager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:22
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/12; F16L59/121; F17; F17C; F17C13/00; F17C2203/00; F17C2203/03; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |