Patent US1992188A successfully refreshed from Google Patents.
US1992188A
Expired / Lapsed
US
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Motor vehicle headlighting system
Assignee: Individual
•
Filing: 1927-03-15
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Granted: 1935-02-26
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Expires: 1947-03-15
Abstract
No abstract record available.
Inventors
- 👤 Chambers Gertrude Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:12
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/14; F; F21; F21S; F21S41/00; F21S41/20; F21S41/285; F21S41/60; F21S41/68; F21S41/683; F21S41/689; F21V; F21V11/00; F21W; F21W2107/00; F21W2107/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-02-25 | 1938-08-27 | 1939-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-25 | 1942-08-27 | 1943-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-25 | 1946-08-27 | 1947-02-26 | $7700.00 | Window Closed / Lapsed |