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US2652197A
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Predetermining system, including devices providing continuous operation without homing or resetting
Assignee: Welding Research Inc
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Filing: 1949-01-28
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Granted: 1953-09-15
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Expires: 1969-01-28
Abstract
No abstract record available.
Inventors
- 👤 Berger Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/64; H03K23/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2049634A
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US2087860A
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US2322712A
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US2269330A
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US2269043A
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US2383702A
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US2346869A
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US2415854A
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US2432727A
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US2517559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |