US3370178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse registering and shifting system of the modified ring counter type
Assignee: Cutler Hammer Inc
•
Filing: 1964-07-13
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Granted: 1968-02-20
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Risberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:30
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351; H02; H02M; H02M1/00; H02M1/08; H03K5/00; H03K5/15; H03K5/15013; H03K5/1506; H03K5/15093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |