US3395293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way ramp generator
Assignee: Leeds and Northrup Co
•
Filing: 1965-12-07
•
Granted: 1968-07-30
•
Expires: 1985-12-07
Abstract
No abstract record available.
Inventors
- 👤 Ronald S Perloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:51
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2868972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |