Patent US2238530A successfully refreshed from Google Patents.
US2238530A
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Assignee: GRAND RAPIDS BRASS Co
•
Filing: 1940-04-20
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Granted: 1941-04-15
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Expires: 1960-04-20
Abstract
No abstract record available.
Inventors
- 👤 Albert F Lickteig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:35
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/02; E05D3/022; E05D7/00; E05D7/08; E05D7/081; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1207; E05F1/1215; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/638; E05Y2900/00; E05Y2900/30; E05Y2900/31; F; F25; F25D; F25D23/00; F25D23/02; F25D23/028; F25D2323/00; F25D2323/02; F25D2323/024
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) | 1944-04-14 | 1944-10-14 | 1945-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-14 | 1948-10-14 | 1949-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-14 | 1952-10-14 | 1953-04-15 | $7700.00 | Window Closed / Lapsed |