US3457423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation sensitive detection system for shopping carts
Assignee: Niagara Frontier Services Inc
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Filing: 1968-05-14
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Granted: 1969-07-22
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Expires: 1988-05-14
Abstract
No abstract record available.
Inventors
- 👤 Oscar W Gravely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:39
CPC Classifications
A; A47; A47F; A47F9/00; A47F9/02; A47F9/04; A47F9/045; G; G07; G07C; G07C11/00
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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |