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Patent US2498135A successfully refreshed from Google Patents.
US2498135A
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US
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Box cover assembly
Assignee: Crouse Hinds Co
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Filing: 1947-01-02
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Granted: 1950-02-21
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Expires: 1967-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Rock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:41
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/14
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) | 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 |