Patent US1913272A successfully refreshed from Google Patents.
Patent US3378696A successfully refreshed from Google Patents.
US3378696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state sequencing and timing and heat control circuit for a resistance welder
Assignee: Schneider Electric USA Inc
•
Filing: 1964-12-24
•
Granted: 1968-04-16
•
Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 James J Eckl
- 👤 Marvin A Guettel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:29
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/25; B23K11/252; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/0405; H; H03; H03K; H03K3/00; H03K3/78
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3016470A
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 |