US3523174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding timing circuit
Assignee: Robotron Corp
•
Filing: 1964-05-25
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Granted: 1970-08-04
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Expires: 1984-05-25
Abstract
No abstract record available.
Inventors
- 👤 Richard E Haver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:28
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/28; H01K1/32; H01K1/325; B; B23; B23K; B23K11/00; B23K11/24; B23K11/248; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07
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) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |