Patent US2539746A successfully refreshed from Google Patents.
US2539746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp and reflector holder
Assignee: Individual
•
Filing: 1947-01-20
•
Granted: 1951-01-30
•
Expires: 1967-01-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Masterson
- 👤 Thomas Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:10
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1039822A
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US1020736A
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US1043244A
Cited
US1353562A
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US1551921A
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US1834318A
Cited
US2252434A
Cited
US2319621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |