US2908555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas detecting device
Assignee: Individual
•
Filing: 1956-07-16
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Granted: 1959-10-13
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Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Grosskopf Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:02
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/75; G01N21/77; G01N21/78; G01N21/783; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/200833; Y10T436/202499
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A GAS TESTING DEVICE COMPRISING A GLASS TESTING TUBE, BREAKING SEALED POINTS ON THE OPPOSITE ENDS OF SAID TUBE, BREAK-AWAY MEANS FORMED ON AND AROUND THE WALL OF SAID TUBE FOR BREAKING SAID TUBE, A FLEXIBLE JACKET SURROUNDING SAID BREAKAWAY MEANS, AND AN AMPOULE MOUNTED WITHIN SAID TUBE AND HAVING A BREAKABLE NECK EXTENDING INTO THE BREAKING AREA OF SAID BREAK-AWAY MEANS.
Claim 2
Dependent Claim
62 words
A GAS TESTING DEVICE COMPRISING A GLASS TESTING TUBE, BREAKING SEALED POINTS ON THE OPPOSITE ENDS OF SAID TUBE, BREAK-AWAY MEANS FORMED ON AND AROUND THE WALL OF SAID TUBE FOR BREAKING SAID TUBE, A FLEXIBLE JACKET SURROUNDING SAID BREAKAWAY MEANS, AND AN AMPOULE MOUNTED WITHIN SAID TUBE AND HAVING A BREAKABLE NECK EXTENDING INTO THE BREAKING AREA OF SAID BREAK-AWAY MEANS.
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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |