US3473216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining aluminum to stainless steel
Assignee: National Aeronautics and Space Administration
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Filing: 1967-05-17
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Granted: 1969-10-21
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Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 Douglas B Nord
- 👤 Ernest G Huschke Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:43
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/19; B23K35/00; B23K35/001; B23K35/002; B23K35/004; B23K5/00; B23K5/12; B23K5/16; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764; Y10T428/12771; Y10T428/12806; Y10T428/12861; Y10T428/12951; Y10T428/12972
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |