US2479795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake cooler
Assignee: Lockheed Martin Corp
•
Filing: 1945-07-13
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Granted: 1949-08-23
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Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 Caril D Vrooman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/82; F16D65/827; F16D2065/781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |