US3434889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper foil surface treatment
Assignee: ThyssenKrupp Budd Co
•
Filing: 1965-10-15
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Granted: 1969-03-25
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Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Haroldson
- 👤 Hubert L Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:38
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/48; C23C22/52; B; B64; B64C; B64C27/00; B64C27/32; C23C22/68; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C23C8/16; H; H05; H05K; H05K3/00; H05K3/38; H05K3/382; H05K3/385; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/03; H05K2203/0315; H05K2203/0392
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2551591A
Cited
US2852421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |