US3402870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive tube welding device
Assignee: Westinghouse Electric Corp
•
Filing: 1965-09-20
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Granted: 1968-09-24
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Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Carlson
- 👤 Charles C Simons
- 👤 Ronald L Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:41
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/04; F28F9/16; B; B21; B21D; B21D39/00; B21D39/06; B21D39/066
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |