US2964688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat dissipators for transistors
Assignee: International Electronic Research Corp
•
Filing: 1959-08-03
•
Granted: 1960-12-13
•
Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 John C Mcadam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:38
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; H10W40/641; H10W40/20; H10W40/231; H10W40/235; H10W40/237; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2820929A
Cited
US2820930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |