US3052001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal casting apparatus
Assignee: Individual
•
Filing: 1955-11-07
•
Granted: 1962-09-04
•
Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 Helen E Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:27
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/06; B22D13/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1215693A
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US1691464A
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US1833347A
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US2009489A
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US2086483A
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DE901106C
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US2688169A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |