US3067320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for joining tantalum sheets
Assignee: Nucor Corp
•
Filing: 1958-11-18
•
Granted: 1962-12-04
•
Expires: 1978-11-18
Abstract
No abstract record available.
Inventors
- 👤 Hubert M Muir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:37
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF CAPACITOR DISCHARGE WELDING OF TANTALUM SHEETS OF A THICKNESS T INCLUDING THE STEPS OF SUBJECTING THE WELD AREA A TO A CONTACT PRESSURE BETWEEN 160 AND 3300 POUNDS PER SQUARE INCH AND SUPPLYING ENERGY BETWEEN 0.5X106 AND 2.1X106 WATT-SECONDS PER CUBIC INCH OF THE VOLUME OF TANTALUM 2TA.
Claim 2
Independent Claim
51 words
A METHOD OF CAPACITOR DISCHARGE WELDING OF TANTALUM SHEETS OF A THICKNESS T INCLUDING THE STEPS OF SUBJECTING THE WELD AREA A TO A CONTACT PRESSURE BETWEEN 160 AND 3300 POUNDS PER SQUARE INCH AND SUPPLYING ENERGY BETWEEN 0.5X106 AND 2.1X106 WATT-SECONDS PER CUBIC INCH OF THE VOLUME OF TANTALUM 2TA.
References Cited (Backward Citations)
US1176614A
Cited
US2287540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |