US3517316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surveillance equipment and system
Assignee: RESEARCH INSTRUMENTS AND CONTROLS Inc
•
Filing: 1966-03-22
•
Granted: 1970-06-23
•
Expires: 1986-03-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Anderson
- 👤 James R Anderson
- 👤 John B Hatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:10
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/16; G08B13/1654; G08B13/1663; G01; G01V; G01V1/00; G01V1/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3258762A
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US2551609A
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US2448713A
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US2600967A
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US2717309A
Cited
US2683867A
Cited
US2831967A
Cited
US3082414A
Cited
US3147467A
Cited
US3360772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |