Patent US2847714A successfully refreshed from Google Patents.
US2847714A
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Method of making centrifugal castings
Assignee: WALTER J MAKER
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Filing: 1956-01-23
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Granted: 1958-08-19
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Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:22
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B29C; B29C41/00; B29C41/34; B29C41/38; B29C41/386; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/32; B29C70/323; B29C70/326; B29C41/02; B29C41/04; B29C41/042; B29K; B29K2067/00; B29K2067/06; B29K2105/00; B29K2105/06; B29K2105/08; B29L; B29L2031/00; B29L2031/08; Y; Y10; Y10S; Y10S264/00; Y10S264/53
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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |