Patent US2710338A successfully refreshed from Google Patents.
US2710338A
Expired / Lapsed
US
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Portable lamp for mechanics' use
Assignee: Individual
•
Filing: 1951-09-11
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Granted: 1955-06-07
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Expires: 1971-09-11
Abstract
No abstract record available.
Inventors
- 👤 John W Svalgaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:09
CPC Classifications
F; F21; F21L; F21L14/00; F21V; F21V17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1051438A
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US1667343A
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US1530402A
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US1783874A
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US2034100A
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US2004265A
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US2382538A
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US2526729A
Cited
US2524435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |