US3047648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor clip, heat sink type
Assignee: Northrop Grumman Corp
•
Filing: 1959-05-04
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Granted: 1962-07-31
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Expires: 1979-05-04
Abstract
No abstract record available.
Inventors
- 👤 Allan Q Mowatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:14
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/12; H10; H10W; H10W40/00; H10W40/60; H10W40/641; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44026; Y10T24/44641; Y10T24/44769; Y10T24/44906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1032527A
Cited
US1174138A
Cited
GB257320A
Cited
US2541828A
Cited
US2808576A
Cited
US2795834A
Cited
US2909354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |