US3057692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolytic instrument
Assignee: Interchemical Corp
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Filing: 1959-07-17
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Granted: 1962-10-09
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Expires: 1979-07-17
Abstract
No abstract record available.
Inventors
- 👤 William Van Kirk
- 👤 Mark W Weiss
- 👤 Arnold M Mowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:20
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N30/12; B; B01; B01D; B01D7/00; G01N2030/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE COMBINATION OF A PYROLYTIC APPARATUS WITH A VAPOR PHASE CHROMATOGRAPHIC INSTRUMENT HAVING A MOVING INERT GAS PHASE, SAID PYROLYTIC APPARATUS COMPRISING ELECTRICALLY HEATED FILAMENT MEANS FOR PYROLYZING A SPECIMEN DEPOSITED THEREON, AIRTIGHT RECEPTACLE MEANS FOR RETAINING THE PYROLYZATE FORMED AND INERT GAS CARRYING MEANS FOR TRANSFERRING THE PYROLYZATE INTO THE MOVING INERT GAS PHASE OF SAID CHROMATOGRAPHIC INSTRUMENT, THE INERT GAS OF SAID PYROLYTIC APPARATUS HAVING THE SAME COMPOSITION AS THE INERT GAS IN SAID CHROMATOGRAPHIC INSTRUMENT.
Claim 2
Dependent Claim
78 words
THE COMBINATION OF A PYROLYTIC APPARATUS WITH A VAPOR PHASE CHROMATOGRAPHIC INSTRUMENT HAVING A MOVING INERT GAS PHASE, SAID PYROLYTIC APPARATUS COMPRISING ELECTRICALLY HEATED FILAMENT MEANS FOR PYROLYZING A SPECIMEN DEPOSITED THEREON, AIRTIGHT RECEPTACLE MEANS FOR RETAINING THE PYROLYZATE FORMED AND INERT GAS CARRYING MEANS FOR TRANSFERRING THE PYROLYZATE INTO THE MOVING INERT GAS PHASE OF SAID CHROMATOGRAPHIC INSTRUMENT, THE INERT GAS OF SAID PYROLYTIC APPARATUS HAVING THE SAME COMPOSITION AS THE INERT GAS IN SAID CHROMATOGRAPHIC INSTRUMENT.
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |