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US2482397A
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Time delay electrical relay system
Assignee: Individual
•
Filing: 1945-06-21
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Granted: 1949-09-20
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Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Wallace H Blankmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/28; H03K17/288
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2238987A
Cited
US2249488A
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US2339750A
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US2396497A
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US2433845A
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US2368477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |