US2958134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headlight testing apparatus and method
Assignee: Individual
•
Filing: 1956-10-23
•
Granted: 1960-11-01
•
Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 Edward D Wilkerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:00
CPC Classifications
G; G01; G01M; G01M11/00; G01M11/02; G01M11/06; G01M11/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US880387A
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DE338003C
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US1434209A
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US2261741A
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US2342828A
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US2314559A
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US2552119A
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US2689403A
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BE499430A
Cited
US2755554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |