US3515950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solderable stainless steel
Assignee: Duracell Inc USA
•
Filing: 1968-02-14
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Granted: 1970-06-02
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Expires: 1988-02-14
Abstract
No abstract record available.
Inventors
- 👤 Edwin Russell Koons
- 👤 Ralph G Parker Jr
- 👤 Jeffrey P Rupley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/018
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |