US3493715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized sequence timer for resistance welding machines
Assignee: Taylor Winfield Corp
•
Filing: 1966-05-09
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Granted: 1970-02-03
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 John M Bigowsky
- 👤 Joseph J Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:17
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/241; B23K11/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2988275A
Cited
US2862114A
Cited
US3141950A
Cited
US3031622A
Cited
US3315062A
Cited
US3291958A
Cited
US3330993A
Cited
US3375449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |