Patent US2830171A successfully refreshed from Google Patents.
US2830171A
Expired / Lapsed
US
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Clearance lamp
Assignee: RAE METAL IND Ltd
•
Filing: 1955-11-18
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Granted: 1958-04-08
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Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Buck Hershell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:53
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2615
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493988A
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US1595047A
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US1949551A
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US2208154A
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US2141240A
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US2099444A
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US2599710A
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US2702340A
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US2690503A
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US2730611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |