Patent US5146453A successfully refreshed from Google Patents.
US3519782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision electric welder
Assignee: AT&T Inc
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Filing: 1966-12-13
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Granted: 1970-07-07
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Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 Paul Mallery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:57
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/10; B23K11/00; B23K11/002; B23K28/00; B23K28/02; H; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/07141
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |