US3246158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical detectors
Assignee: Varian Medical Systems Inc
•
Filing: 1961-02-10
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Granted: 1966-04-12
•
Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 William E Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:34
CPC Classifications
G; G02; G02F; G02F2/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A NARROW-BAND OPTICAL DETECTION SYSTEM COMPRISING: MEANS FOR CONTAINING AN OPTICALLY SENSITIVE PLASMA, AN ELECTRODELESS RADIO FREQUENCY MEANS FOR APPLYING A RADIO FREQUENCY SIGNAL INDUCTIVELY AND EXTERNALLY DISPOSED RELATIVE TO SAID CONTAINING MEANS FOR MAINTAINING SAID PLASMA IN A GLOW DISCHARGE CONDITION, AND MEANS FOR MONITORING
Claim 2
Dependent Claim
46 words
A NARROW-BAND OPTICAL DETECTION SYSTEM COMPRISING: MEANS FOR CONTAINING AN OPTICALLY SENSITIVE PLASMA, AN ELECTRODELESS RADIO FREQUENCY MEANS FOR APPLYING A RADIO FREQUENCY SIGNAL INDUCTIVELY AND EXTERNALLY DISPOSED RELATIVE TO SAID CONTAINING MEANS FOR MAINTAINING SAID PLASMA IN A GLOW DISCHARGE CONDITION, AND MEANS FOR MONITORING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |