US3488564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planar epitaxial resistors
Assignee: Fairchild Semiconductor Corp
•
Filing: 1968-04-01
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Granted: 1970-01-06
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Expires: 1988-04-01
Abstract
No abstract record available.
Inventors
- 👤 Harold S Crafts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10D84/615; H10W; H10W10/00; H10W10/01; H10W10/011; H10W10/012; H10W10/10; H10W10/13; H10W15/00; H10W15/01; Y; Y10; Y10S; Y10S148/00; Y10S148/085; Y10S148/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |