Patent US2796793A successfully refreshed from Google Patents.
US2796793A
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Assignee: American Steel Foundries
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Filing: 1952-12-09
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Granted: 1957-06-25
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Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Addison Tom
- 👤 James K Mcbeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:41
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/121; B23Q35/18; B23Q35/181; B23Q35/183; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5109; Y10T29/5111; Y10T29/5124; Y10T29/5127; Y10T29/5128; Y10T29/5179; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/25; Y10T82/2531; Y10T82/2552; Y10T82/2554; Y10T82/2556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2068890A
Cited
US2120196A
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US2475326A
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US2389368A
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US2557824A
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US2498272A
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US2527458A
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US2586183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |