US3515472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle camera systems
Assignee: RALPH K SCHWITZGEBEL
•
Filing: 1967-11-14
•
Granted: 1970-06-02
•
Expires: 1987-11-14
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Schwitzgebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/052; G08G1/054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1589436A
Cited
US2076482A
Cited
US2336076A
Cited
US2428273A
Cited
US3097263A
Cited
US3289557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |