US2999281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making castings
Assignee: Griffin Wheel Co Inc
•
Filing: 1958-08-14
•
Granted: 1961-09-12
•
Expires: 1978-08-14
Abstract
No abstract record available.
Inventors
- 👤 Drever James Ross
- 👤 Edward C Kavanaugh
- 👤 John E Bossong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:11
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; B22D; B22D17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US501331A
Cited
US2732601A
Cited
US1801922A
Cited
GB331774A
Cited
DE628436C
Cited
GB759029A
Cited
US2859498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |