US2507552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blackout automobile headlight mask
Assignee: United States Department of Commerce
•
Filing: 1944-01-08
•
Granted: 1950-05-16
•
Expires: 1964-01-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Ray P Teele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:44
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/14; F; F21; F21S; F21S41/00; F21S41/40; F21S41/43; F21S41/47; F21V; F21V11/00; F21W; F21W2107/00; F21W2107/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB170362A
Cited
US1428895A
Cited
US1928539A
Cited
US1874432A
Cited
FR766967A
Cited
US2102928A
Cited
US2202278A
Cited
GB537084A
Cited
GB542855A
Cited
GB551212A
Cited
US2332470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |