US2907638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for quantitative isothermal distillation
Assignee: Individual
•
Filing: 1956-09-24
•
Granted: 1959-10-06
•
Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Robert L Dryer
- 👤 Joseph I Routh
- 👤 Harry G Nunamaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:40
CPC Classifications
B; B01; B01D; B01D3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
AN ANALYTICAL APPARATUS FOR THE QUANTITATIVE ISOTHERMAL DISTILLATION OF VOLATILE LIQUIDS AND GASEOUS SUBSTANCES TO ASCERTAIN THA AMOUNT OF A PARTICULAR INGREDIENT PRESENT THEREIN CONSISTING ESSENTIALLY OF AN ELONGATED TUBULAR SUPPLY RECAPTACLE AND AN ELONGATED TUBULAR TRAP RECEPTACLE REMOVABLY MOUNTED ON THE UPPER END OF SAID SUPPLY RECEPTACLE, A BASE WITHIN SAID SUPPLY RECEPTACLE HAVING AN OPENING THERETHROUGH, SAID SUPPLY RECEPTACLE ABOVE SAID JBASE DEFINING A PEAR-SHAPED SUPPLY CHAMBER FOR HOLDING A KNOW VOLUME OF SAMPLE FLUID TO BE TESTED, A TUBULAR MEMBER EXTENDING UPWARDLY FROM SAID BASE ABOUT SAID OPENING, A SECOND TUBULAR MEMBER EXTENDING UPWARDLY FROM SAID BASE ABOUT SAID FIRST TUBULAR MEMBER, SAID SECOND MEMBER HAVING A CAPPED UPPER PORTION AND A PLURALITY OF SPACED APPARATUES ABOUT THE LOWER PERIPHERAL SURFACE THEREOF, SAID SUPPLY RECEPTACLE INCLUDING A BULBULAR CHAMBER LOCATED BELOW SAID BASE AND MEANS FORMED BY THE LOWER END OF SAID SUPPLY RECEPTACLE BELOW SAID BULBULAR CHAMBER FOR ENGAGEMENT WITH A GAS SUPPLYING CONDUIT, SAID ELONGATED TUBULAR TRAP RECEPTACLE HAVING ITS LOWER END SHAPED FOR FRICTIONAL ENGAGEMENT EITH SAID UPPER END OF SAID SUPPLY RECEPTACLE, SAID TRAP
Claim 2
Dependent Claim
181 words
AN ANALYTICAL APPARATUS FOR THE QUANTITATIVE ISOTHERMAL DISTILLATION OF VOLATILE LIQUIDS AND GASEOUS SUBSTANCES TO ASCERTAIN THA AMOUNT OF A PARTICULAR INGREDIENT PRESENT THEREIN CONSISTING ESSENTIALLY OF AN ELONGATED TUBULAR SUPPLY RECAPTACLE AND AN ELONGATED TUBULAR TRAP RECEPTACLE REMOVABLY MOUNTED ON THE UPPER END OF SAID SUPPLY RECEPTACLE, A BASE WITHIN SAID SUPPLY RECEPTACLE HAVING AN OPENING THERETHROUGH, SAID SUPPLY RECEPTACLE ABOVE SAID JBASE DEFINING A PEAR-SHAPED SUPPLY CHAMBER FOR HOLDING A KNOW VOLUME OF SAMPLE FLUID TO BE TESTED, A TUBULAR MEMBER EXTENDING UPWARDLY FROM SAID BASE ABOUT SAID OPENING, A SECOND TUBULAR MEMBER EXTENDING UPWARDLY FROM SAID BASE ABOUT SAID FIRST TUBULAR MEMBER, SAID SECOND MEMBER HAVING A CAPPED UPPER PORTION AND A PLURALITY OF SPACED APPARATUES ABOUT THE LOWER PERIPHERAL SURFACE THEREOF, SAID SUPPLY RECEPTACLE INCLUDING A BULBULAR CHAMBER LOCATED BELOW SAID BASE AND MEANS FORMED BY THE LOWER END OF SAID SUPPLY RECEPTACLE BELOW SAID BULBULAR CHAMBER FOR ENGAGEMENT WITH A GAS SUPPLYING CONDUIT, SAID ELONGATED TUBULAR TRAP RECEPTACLE HAVING ITS LOWER END SHAPED FOR FRICTIONAL ENGAGEMENT EITH SAID UPPER END OF SAID SUPPLY RECEPTACLE, SAID TRAP
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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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |