US3404284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin-hole detector with air nozzles for cleaning scanner window
Assignee: United States Steel Corp
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Filing: 1966-01-18
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Granted: 1968-10-01
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Philip C Doolittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/0006; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/892; G01N21/894
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PIN-HOLE DETECTOR WITH AIR NOZZLES FOR CLEANING THE SCANNER WINDOW THEREOF, SAID DETECTOR BEING PROVIDED WITH GUIDE RAILS FOR ADJUSTABLE BLINDERS, SAID RAILS HAVING INCORPORATED THEREIN AIR NOZZLES ADAPTED TO DIRECT A FORCEFUL FLOW OF AIR ACROSS THE SURFACE OF SAID SCANNER WINDOW.
Claim 2
Dependent Claim
44 words
A PIN-HOLE DETECTOR WITH AIR NOZZLES FOR CLEANING THE SCANNER WINDOW THEREOF, SAID DETECTOR BEING PROVIDED WITH GUIDE RAILS FOR ADJUSTABLE BLINDERS, SAID RAILS HAVING INCORPORATED THEREIN AIR NOZZLES ADAPTED TO DIRECT A FORCEFUL FLOW OF AIR ACROSS THE SURFACE OF SAID SCANNER WINDOW.
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) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |