US3520720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dies and diode and method
Assignee: Raytheon Co
•
Filing: 1966-12-13
•
Granted: 1970-07-14
•
Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 Frank J Saia
- 👤 Gilbert N Mcintyre
- 👤 Harvey J Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:59
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10W74/10; H10W74/131; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138; H10W76/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2798189A
Cited
US3296503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |