US1988910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chill cast iron alloy
Assignee: Huntington Alloys Corp
•
Filing: 1934-06-06
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Granted: 1935-01-22
•
Expires: 1954-06-06
Abstract
No abstract record available.
Inventors
- 👤 Paul D Merica
- 👤 James S Vanick
- 👤 Thomas H Wickenden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:32
CPC Classifications
C; C22; C22C; C22C37/00; C22C37/06; C22C37/08; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-01-21 | 1938-07-23 | 1939-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-01-21 | 1942-07-23 | 1943-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-01-21 | 1946-07-23 | 1947-01-22 | $7700.00 | Window Closed / Lapsed |