US2792606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making castings
Assignee: Griffin Wheel Co Inc
•
Filing: 1956-05-15
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Granted: 1957-05-21
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Expires: 1976-05-15
Abstract
No abstract record available.
Inventors
- 👤 Edmund Q Sylvester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:11
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/04; B22D15/00; B22D15/005; Y; Y10; Y10S; Y10S164/00; Y10S164/14; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49989
Claims Analysis
Total Claims: 0
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US2451505A
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US2480899A
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US2556152A
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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) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |