US3137896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for subjecting matter to ultra-high pressure
Assignee: Union Carbide Corp
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Filing: 1961-09-27
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Granted: 1964-06-23
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 William B Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:42
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/065; B30; B30B; B30B11/00; B30B11/004
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
IN AN APPARATUS CAPABLE OF EXERTING A PRESSURE OF AT LEAST 100,000 ATMOSPHERES ON A TEST SPECIMEN AND SIMULTANEOUSLY HEATING IT TO AT LEAST A TEMPERATURE OF 3000*C.; SAID APPARATUS COMPRISING A PLURALITY OF OPPOSED FURSTOCONICAL RAMS WHICH ARE FREE TO CONVERGE THEREBY FORMING A CORE REGION FOR RETENTION OF SAID TEST SPECIMEN, THE IMPROVEMENT WHICH COMPRISES CONSOLIDATION GASKETS OF YIELDABLE PLASTIC MATERIAL CHOSEN FROM THE GROUP CONSISTING OF EXTENDABLE POLYETHYLENE AND A TETRAFLUOROETHYLENE POLYMER LOCATED BETWEEN THE MATING SURFACES OF SAID RAMS AND REPLACABLE HARD METAL DECOMPRESSION CAPS DISPOSED IN SAID CORE REGION BETWEEN SAID RAMS AND SAID TEST SPECIMEN.
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Cited
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |