US3393323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light bar monitoring system with shutters separated by increasing distances
Assignee: Individual
•
Filing: 1964-06-19
•
Granted: 1968-07-16
•
Expires: 1984-06-19
Abstract
No abstract record available.
Inventors
- 👤 Breuning Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:11
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/18; G08B13/181; G08B13/183; D; D01; D01H; D01H13/00; D01H13/14; D01H13/16; D01H13/1616; D01H13/1633; D01H13/165; D03; D03D; D03D51/00; D03D51/18; D03D51/34; G01; G01V; G01V8/00; G01V8/10; G01V8/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1546264A
Cited
US2054382A
Cited
US2513283A
Cited
US2967947A
Cited
US3094625A
Cited
US3092727A
Cited
US3113774A
Cited
US3174046A
Cited
US3170068A
Cited
US3184798A
Cited
US3207266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |