US2998532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear ramp voltage wave shape generator
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1958-05-21
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Granted: 1961-08-29
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Expires: 1978-05-21
Abstract
No abstract record available.
Inventors
- 👤 Jack C Smeltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:31
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/50; H03K4/58; H03K4/10; H03K4/12; H03K4/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2708240A
Cited
US2905835A
Cited
US2837663A
Cited
US2891173A
Cited
US2892952A
Cited
US2933623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |