US2554467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay
Assignee: Automatic Temperature Control Co Inc
•
Filing: 1947-04-09
•
Granted: 1951-05-22
•
Expires: 1967-04-09
Abstract
No abstract record available.
Inventors
- 👤 William D Macgeorge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:25
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/22; H01H47/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1454005A
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US2187523A
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US2331418A
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US2442430A
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US2411247A
Cited
US2357745A
Cited
US2341968A
Cited
US2412092A
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US2439711A
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US2431237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |