US3266554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparing specimens for chromatographic analysis
Assignee: Possis Machine Corp
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Filing: 1963-11-29
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Granted: 1966-08-16
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Gerald K A Brownrigg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:04
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/90; G01N30/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN APPARATUS FOR DEPOSITING FLUID ON A COHERENT SHEET-LIKE ABSORPTIVE MEDIUM COMPRISING A SYRINGE INCLUDING A PLUNGER, A SUPPORT, BRACKET MEANS MOUNTED UPON SAID SUPPORT TO HOLD SAID SYRINGE, A DRIVE MEANS INCLUDING A DRIVE MOTOR, A DRIVE MEMBER POSITIONED FOR SLIDING MOVEMENT UPON SAID SUPPORT, A DRIVE ASSEMBLY OPERATIVELY CONNECTED BETWEEN THE DRIVE MEMBER AND THE DRIVE MOTOR, MEANS ON THE DRIVE MEMBER ADAPTED TO ENGAGE SAID PLUNGER, A NOZZLE, DUCT MEANS COMMUNICATING BETWEEN THE SYRINGE AND SAID NOZZLE, AND AIR-TIGHT HOUSING SURROUNDING SAID NOZZLE, SAID HOUSING INCLUDING AN OPENING POSITIONED CONCENTRIC WITH SAID NOZZLE AND IN VERTICAL ALIGNMENT THEREWITH ON THE LOWER SIDE OF SAID HOUSING, SEALING MEANS MOUNTED AROUND THE LOWER ASPECT OF EACH OF SAID OPENING, SUPPORT MEANS POSITIONED BENEATH THE SEALING MEANS AND ADAPTED TO RECEIVE SAID SHEET-LIKE ABSORPTIVE MEDIUM BETWEEN THE SUPPORT MEANS AND THE SEALING MEANS, SAID SUPPORT MEANS INCLUDING AN OPENING IN ALIGNMENT WITH SAID OPENING IN THE HOUSING AND VACUUM MEANS COMMUNICATING WITH THE OPENING IN THE SUPPORT MEANS FOR PROVIDING AN AIR PRESSURE DIFFERENTIAL ACROSS THE ABSORPTIVE MEDIUM.
Claim 2
Independent Claim
178 words
AN APPARATUS FOR DEPOSITING FLUID ON A COHERENT SHEET-LIKE ABSORPTIVE MEDIUM COMPRISING A SYRINGE INCLUDING A PLUNGER, A SUPPORT, BRACKET MEANS MOUNTED UPON SAID SUPPORT TO HOLD SAID SYRINGE, A DRIVE MEANS INCLUDING A DRIVE MOTOR, A DRIVE MEMBER POSITIONED FOR SLIDING MOVEMENT UPON SAID SUPPORT, A DRIVE ASSEMBLY OPERATIVELY CONNECTED BETWEEN THE DRIVE MEMBER AND THE DRIVE MOTOR, MEANS ON THE DRIVE MEMBER ADAPTED TO ENGAGE SAID PLUNGER, A NOZZLE, DUCT MEANS COMMUNICATING BETWEEN THE SYRINGE AND SAID NOZZLE, AND AIR-TIGHT HOUSING SURROUNDING SAID NOZZLE, SAID HOUSING INCLUDING AN OPENING POSITIONED CONCENTRIC WITH SAID NOZZLE AND IN VERTICAL ALIGNMENT THEREWITH ON THE LOWER SIDE OF SAID HOUSING, SEALING MEANS MOUNTED AROUND THE LOWER ASPECT OF EACH OF SAID OPENING, SUPPORT MEANS POSITIONED BENEATH THE SEALING MEANS AND ADAPTED TO RECEIVE SAID SHEET-LIKE ABSORPTIVE MEDIUM BETWEEN THE SUPPORT MEANS AND THE SEALING MEANS, SAID SUPPORT MEANS INCLUDING AN OPENING IN ALIGNMENT WITH SAID OPENING IN THE HOUSING AND VACUUM MEANS COMMUNICATING WITH THE OPENING IN THE SUPPORT MEANS FOR PROVIDING AN AIR PRESSURE DIFFERENTIAL ACROSS THE ABSORPTIVE MEDIUM.
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |