US2118344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator screen
Assignee: Individual
•
Filing: 1937-05-21
•
Granted: 1938-05-24
•
Expires: 1957-05-21
Abstract
No abstract record available.
Inventors
- 👤 David A Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:49
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/02; B60K11/04; F; F28; F28F; F28F19/00; F28F19/01; F28F9/00; F28F9/02; F28F9/0219; F28F9/0224; F28F9/0226; F01; F01P; F01P11/00; F01P11/06; F01P2011/061; F28D; F28D21/00; F28D2021/0019; F28D2021/008; F28D2021/0091; F28D2021/0094; F28F2275/00; F28F2275/20
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) | 1941-05-23 | 1941-11-22 | 1942-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-23 | 1945-11-22 | 1946-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-23 | 1949-11-22 | 1950-05-24 | $7700.00 | Window Closed / Lapsed |