US2498614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Clark Controller Co
•
Filing: 1947-05-27
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Granted: 1950-02-21
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Expires: 1967-05-27
Abstract
No abstract record available.
Inventors
- 👤 William C Tregoning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:50
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/044; H01; H01H; H01H11/00; H01H11/0006; H01H19/00; H01H19/54; H01H19/60; H01H19/635; H01H19/6355; H01H9/00; H01H9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2357971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |