Patent US3419865A successfully refreshed from Google Patents.
US3419865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile emergency unit locating system
Assignee: Individual
•
Filing: 1967-05-10
•
Granted: 1968-12-31
•
Expires: 1987-05-10
Abstract
No abstract record available.
Inventors
- 👤 John P Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:10
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S11/08; G01S5/00; G01S5/02; G01S5/06; G08; G08G; G08G1/00; G08G1/20; G08G1/202
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |