US2415223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant provided with triangular pyramidal projection
Assignee: Servel Inc
•
Filing: 1943-06-12
•
Granted: 1947-02-04
•
Expires: 1963-06-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; F; F24; F24C; F24C15/00; F24C15/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1073660A
Cited
US1199133A
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GB377183A
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US1901086A
Cited
US1963817A
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CH186502A
Cited
US2182734A
Cited
US2235886A
Cited
US2255349A
Cited
US2263432A
Cited
US2244045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |