US3033655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube for detecting impurities in air
Assignee: Individual
•
Filing: 1960-12-07
•
Granted: 1962-05-08
•
Expires: 1980-12-07
Abstract
No abstract record available.
Inventors
- 👤 Grosskopf Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:44
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24; G01N31/00; G01N31/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A DEVICE FOR TESTING GASES COMPRISING AN ELONGATED TRANSPARENT TUBULAR MEMBER, SEPARATING MEANS WITHIN THE MEMBER COMPRISING AT LEAST ONE WALL EXTENDING LONGITUDINALLY WITHIN THE TUBULAR MEMBER AND DIVIDING IT INTO COMPARTMENTS, GLASS AMPOULES CONTAINING TESTING REAGENTS WITHIN SAID COMPARTMENTS, AT LEAST ONE OF SAID GLASS AMPOULES HAVING AN OUTER COVERING OF LIQUID-ABSORBENT MATERIAL, SAID TUBULAR MEMBER HAVING A PORTION DEFORMABLE TO PERMIT BREAKING OF THE AMPOULES FROM THE OUTSIDE OF THE TUBE.
Claim 2
Independent Claim
73 words
A DEVICE FOR TESTING GASES COMPRISING AN ELONGATED TRANSPARENT TUBULAR MEMBER, SEPARATING MEANS WITHIN THE MEMBER COMPRISING AT LEAST ONE WALL EXTENDING LONGITUDINALLY WITHIN THE TUBULAR MEMBER AND DIVIDING IT INTO COMPARTMENTS, GLASS AMPOULES CONTAINING TESTING REAGENTS WITHIN SAID COMPARTMENTS, AT LEAST ONE OF SAID GLASS AMPOULES HAVING AN OUTER COVERING OF LIQUID-ABSORBENT MATERIAL, SAID TUBULAR MEMBER HAVING A PORTION DEFORMABLE TO PERMIT BREAKING OF THE AMPOULES FROM THE OUTSIDE OF THE TUBE.
References Cited (Backward Citations)
US1333850A
Cited
US2908555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |