US2234185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-tone die casting and method of forming the same
Assignee: WHITCHALL PATENTS Corp
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Filing: 1937-05-25
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Granted: 1941-03-11
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Expires: 1957-05-25
Abstract
No abstract record available.
Inventors
- 👤 Marinsky Davis
- 👤 Louis H Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/16; B29C45/1615; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49782; Y10T29/49783; Y10T428/00; Y10T428/19; Y10T428/192
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) | 1944-03-10 | 1944-09-09 | 1945-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-10 | 1948-09-09 | 1949-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-10 | 1952-09-09 | 1953-03-11 | $7700.00 | Window Closed / Lapsed |