US3340925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic level control for metal casting
Assignee: Amsted Industries Inc
•
Filing: 1966-04-06
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Granted: 1967-09-12
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Expires: 1986-04-06
Abstract
No abstract record available.
Inventors
- 👤 Jr James Woodburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:02
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/04; B22D11/00; B22D11/14; B22D11/145; B22D11/16; B22D11/18; B22D11/181; B22D11/183; B22D18/08; G; G05; G05D; G05D9/00; G05D9/12
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |