US3534589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free particle and loose object detection system
Assignee: General Electric Co
•
Filing: 1967-02-28
•
Granted: 1970-10-20
•
Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Gibbons
- 👤 Max W Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:43
CPC Classifications
G; G01; G01M; G01M7/00; G01M7/02; G01M7/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2305783A
Cited
US2685671A
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US3004662A
Cited
US3106838A
Cited
US3182489A
Cited
US3191430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |