US2849769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal casting apparatus and process
Assignee: Herman Pneumatic Machine Co
•
Filing: 1954-05-05
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Granted: 1958-09-02
•
Expires: 1974-05-05
Abstract
No abstract record available.
Inventors
- 👤 John A Lasater
- 👤 Thomas A Deakins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:07
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/02; B22D13/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR590287A
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US2563844A
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US2613410A
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US2663058A
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US2729865A
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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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |