US3495019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction furnace for melting aluminum and similar metals
Assignee: Briggs and Stratton Corp
•
Filing: 1968-06-12
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Granted: 1970-02-10
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Expires: 1988-06-12
Abstract
No abstract record available.
Inventors
- 👤 John D Santi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:23
CPC Classifications
F; F27; F27D; F27D11/00; H; H05; H05B; H05B6/00; H05B6/02; H05B6/16; H05B6/20; Y; Y10; Y10S; Y10S65/00; Y10S65/04
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) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |