US2906931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: RCA Corp
•
Filing: 1954-12-23
•
Granted: 1959-09-29
•
Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Lorne D Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/131; H10W40/00; H10W40/70; H10W76/00; H10W76/10; H10W76/12; H10W76/161; H10W76/40; H10W76/42; H10W76/47; H10W72/00; H10W72/01; H10W72/015; H10W72/01515; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A CIRCUIT ELEMENT COMPRISING AN INSULATING SUPPORT MEMBER, CONDUCTIVE SUPPORT RODS EXTENDING THROUGH SAID MEMBER, A SEMICONDUCTOR DEVICE CARRIED BY SAID MEMBER AND HAVING A RECTIFYING BARRIER EXPOSED TO A SURFACE THEREOF, A LAYER OF A RESILIENT, RUBBER-LIKE SILICONE RESIN IN INTIMATE CONTACT WITH SAID DEVICE AND PROTECTING SAID BARRIER, SAID SILICONE RESIN CONTAINING METHYL AND PHENYL GROUPS ATTACHED DIRECTLY TO SILICON ATOMS WITH THE RATIO OF SAID GROUPS TO SILICON ATOMS BEING ABOUT 1.2:1, A BODY OF A THERMALLY CONDUCTING SILICONE GREASE SURROUNDING SAID DEVICE, SAID SILICONE GREASE COMPRISING A DIMETHYL SILICONE POLYMER CONTAINING A SILICEOUS FILLER, AND AN ENCLOSING SHELL HERMETICALLY SEALED TO SAID SUPPORT MEMBER AND IN INTIMATE CONTACT WITH SAID SILICONE GREASE.
Claim 2
Dependent Claim
116 words
A CIRCUIT ELEMENT COMPRISING AN INSULATING SUPPORT MEMBER, CONDUCTIVE SUPPORT RODS EXTENDING THROUGH SAID MEMBER, A SEMICONDUCTOR DEVICE CARRIED BY SAID MEMBER AND HAVING A RECTIFYING BARRIER EXPOSED TO A SURFACE THEREOF, A LAYER OF A RESILIENT, RUBBER-LIKE SILICONE RESIN IN INTIMATE CONTACT WITH SAID DEVICE AND PROTECTING SAID BARRIER, SAID SILICONE RESIN CONTAINING METHYL AND PHENYL GROUPS ATTACHED DIRECTLY TO SILICON ATOMS WITH THE RATIO OF SAID GROUPS TO SILICON ATOMS BEING ABOUT 1.2:1, A BODY OF A THERMALLY CONDUCTING SILICONE GREASE SURROUNDING SAID DEVICE, SAID SILICONE GREASE COMPRISING A DIMETHYL SILICONE POLYMER CONTAINING A SILICEOUS FILLER, AND AN ENCLOSING SHELL HERMETICALLY SEALED TO SAID SUPPORT MEMBER AND IN INTIMATE CONTACT WITH SAID SILICONE GREASE.
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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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |