Patent US3430680A successfully refreshed from Google Patents.
US3430680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming structural shapes from molten material by stream casting
Assignee: Individual
•
Filing: 1966-06-16
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Granted: 1969-03-04
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Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 George R Leghorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:00
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/14; B22D11/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2363695A
Cited
FR52095E
Cited
US2627084A
Cited
US2617148A
Cited
US2754559A
Cited
US3096083A
Cited
US3128513A
Cited
US3321008A
Cited
US3347959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |