US2485745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat dissipator for electrical devices and equipment
Assignee: Philips North America LLC
•
Filing: 1946-08-09
•
Granted: 1949-10-25
•
Expires: 1966-08-09
Abstract
No abstract record available.
Inventors
- 👤 John C Koonz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:21
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607; H01F5/00; H01F5/02; H04; H04R; H04R9/00; H04R9/02; H04R9/022; Y; Y10; Y10S; Y10S165/00; Y10S165/905; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |