US3378701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct coupled pulse timing apparatus
Assignee: General Radio Co
•
Filing: 1965-05-21
•
Granted: 1968-04-16
•
Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 Richard W Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:34
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/017; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2596167A
Cited
US2824962A
Cited
US3053996A
Cited
US3105939A
Cited
US3049625A
Cited
US3073972A
Cited
US3225221A
Cited
US3297883A
Cited
US3303359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |