Patent US3535352A successfully refreshed from Google Patents.
US3535352A
Expired / Lapsed
US
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Solder flux which leaves corrosion-resistant coating
Assignee: National Aeronautics and Space Administration
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Filing: 1967-08-22
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Granted: 1970-10-20
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Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Albert Bauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:03
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615; C; C07; C07C; C07C53/00; C07C53/15; C07C53/19; C07C53/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2827471A
Cited
US2927941A
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US3232970A
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US3223561A
Cited
US3271430A
Cited
US3220892A
Cited
US3357093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |