Patent US3275724A successfully refreshed from Google Patents.
US3275724A
Expired / Lapsed
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Method of autoclaving concrete blocks
Assignee: Struthers Scientific and International Corp
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Filing: 1965-04-02
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Granted: 1966-09-27
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 John B Klingel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:25
CPC Classifications
C; C04; C04B; C04B40/00; C04B40/02; C04B40/024; B; B01; B01J; B01J3/00; B01J3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF AUTOCLAVING ARTICLES ADAPTED TO UNDERGO CHEMICAL TRANSFORMATION UPON SUBJECTION THEREOF TO HIGH TEMPERATURES AND PRESSURES, COMPRISING THE STEPS OF: (1) SUPPORTING SAID ARTICLES OUT OF CONTACT WITH LIQUID WATER WITHIN A CLOSED CHAMBER PROVIDED THEREIN WITH A RESERVOIR OF WATER, (2) HEATING BY INDIRECT HEAT WITHIN THE CHAMBER AND THEREBY VAPORIZING AT LEAST A PORTION OF SAID WATER FOR THE DEVELOPMENT OF STREAM PRESSURE WITHIN SAID CHAMBER AND FOR THE EFFECTING OF CHEMICAL TRANSFORMATION OF SAID ARTICLES; (3) RELIEVING SAID STREAM PRESSURE WITHIN SAID CHAMBER; AND (4) MAINTAINING ANY UNVAPORIZED PORTION OF SAID WATER AGAINST SUBSTANTIAL LOSS OF HEAT.
Claim 2
Independent Claim
102 words
A METHOD OF AUTOCLAVING ARTICLES ADAPTED TO UNDERGO CHEMICAL TRANSFORMATION UPON SUBJECTION THEREOF TO HIGH TEMPERATURES AND PRESSURES, COMPRISING THE STEPS OF: (1) SUPPORTING SAID ARTICLES OUT OF CONTACT WITH LIQUID WATER WITHIN A CLOSED CHAMBER PROVIDED THEREIN WITH A RESERVOIR OF WATER, (2) HEATING BY INDIRECT HEAT WITHIN THE CHAMBER AND THEREBY VAPORIZING AT LEAST A PORTION OF SAID WATER FOR THE DEVELOPMENT OF STREAM PRESSURE WITHIN SAID CHAMBER AND FOR THE EFFECTING OF CHEMICAL TRANSFORMATION OF SAID ARTICLES; (3) RELIEVING SAID STREAM PRESSURE WITHIN SAID CHAMBER; AND (4) MAINTAINING ANY UNVAPORIZED PORTION OF SAID WATER AGAINST SUBSTANTIAL LOSS OF HEAT.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |