US3281341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving solderability of tin plate
Assignee: United States Steel Corp
•
Filing: 1963-04-18
•
Granted: 1966-10-25
•
Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 Issa J Kharouf
- 👤 Richard A Neish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:00
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; C; C25; C25D; C25D11/00; C25D11/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970578A
Cited
US2420602A
Cited
US2601863A
Cited
US2606866A
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US2916459A
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US2987426A
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US3145180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |