US2900701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices and methods
Assignee: GTE Sylvania Inc
•
Filing: 1953-04-07
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Granted: 1959-08-25
•
Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Donald I Coggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:02
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/40; H10W76/42; H10W76/48; H10W72/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE PROCESS OF PREPARING SEMICONDUCTOR DEVICES COMPRISING THE STEPS OF JOINIJG A SEMICONDUCTOR ELEMENT HAVING A PREPARED SURFACE TO A SUPPORT, COVERING SAID SURFACE WITH A QUANTITY OF A POWDERED DESICCANT, CONTACTING SAID SEMICONDUCTOR ELEMENT WITH A CONTACT ELEMENT EXTENDING THROUGH SAID DESICCANT WHILE VIBRATING SAID ELEMENTS, AND HETMETICALLY SEALING SAID DESICCANT AND SAID ELEMENTS WITHIN AN ENVELOPE.
Claim 2
Dependent Claim
58 words
THE PROCESS OF PREPARING SEMICONDUCTOR DEVICES COMPRISING THE STEPS OF JOINIJG A SEMICONDUCTOR ELEMENT HAVING A PREPARED SURFACE TO A SUPPORT, COVERING SAID SURFACE WITH A QUANTITY OF A POWDERED DESICCANT, CONTACTING SAID SEMICONDUCTOR ELEMENT WITH A CONTACT ELEMENT EXTENDING THROUGH SAID DESICCANT WHILE VIBRATING SAID ELEMENTS, AND HETMETICALLY SEALING SAID DESICCANT AND SAID ELEMENTS WITHIN AN ENVELOPE.
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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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |