US3431077A
Expired / Lapsed
US
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Analytical apparatus
Assignee: JOSEPH D DANFORTH
•
Filing: 1966-07-18
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Granted: 1969-03-04
•
Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Danforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:31
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N30/12; G01N1/00; G01N1/02; G01N1/22; G01N2030/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AN ANALYTICAL APPARATUS COMPRISING MEANS DEFINING A PLURALITY OF HEATED AND TEMPERATURE-CONTROLLED CHAMBERS ADAPTED TO CONTAIN A SOLID TEST MATERIAL, EACH OF SAID CHAMBERS HAVING AN INLET AND AN OTLET, MEANS FOR INTRODUCING A CARRIER GAS SELECTIVELY INTO THE INLET OF ANY ONE
Claim 2
Dependent Claim
43 words
AN ANALYTICAL APPARATUS COMPRISING MEANS DEFINING A PLURALITY OF HEATED AND TEMPERATURE-CONTROLLED CHAMBERS ADAPTED TO CONTAIN A SOLID TEST MATERIAL, EACH OF SAID CHAMBERS HAVING AN INLET AND AN OTLET, MEANS FOR INTRODUCING A CARRIER GAS SELECTIVELY INTO THE INLET OF ANY ONE
References Cited (Backward Citations)
US2868011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |