US2557590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopically controlled head lamp
Assignee: Individual
•
Filing: 1948-11-02
•
Granted: 1951-06-19
•
Expires: 1968-11-02
Abstract
No abstract record available.
Inventors
- 👤 Beckerman Raymond
- 👤 Homer J Boyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/06; B60Q1/076; B60Q1/08; B60Q1/085; B60Q2300/00; B60Q2300/10; B60Q2300/13; B60Q2300/134; B60Q2300/30; B60Q2300/32; B60Q2300/324; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |