US3054910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage comparator indicating two input signals equal employing constant current source and bistable trigger
Assignee: Epsco Inc
•
Filing: 1959-05-27
•
Granted: 1962-09-18
•
Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Bothwell Theodore Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/22; H03K5/24; H03K5/2409; H03K5/2418
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB753689A
Cited
US2772359A
Cited
US2909676A
Cited
US2831986A
Cited
US2903605A
Cited
US2846594A
Cited
US2909678A
Cited
US2920215A
Cited
US2933623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |