Patent US2756129A successfully refreshed from Google Patents.
US2756129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling corrosive acid substances
Assignee: Individual
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Filing: 1954-07-13
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Granted: 1956-07-24
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Expires: 1974-07-13
Abstract
No abstract record available.
Inventors
- 👤 Edward L Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:00
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; Y; Y10; Y10S; Y10S215/00; Y10S215/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
AN APPARATUS FOR REACTING CORROSIVE ACID SUBSTANCES SUCH AS HYDROGEN FLUORIDE, HYDROFLUORIC ACID, FUMING NITRIC ACID AND MIXTURES OF THE LIKE WITH A NEUTRALIZING AGENT COMPRISING A GLASS FLASK HAVING A FILLER NECK PORTION, A CORROSION RESISTANT WEIGHING VIAL FOR CONTAINING THE CORROSIVE SUBSTANCE SAID VIAL BEING INSERTABLE INTO THE FLASK THROUGH THE NECK PORTION THEREOF, A REMOVABLE HOLLOW PLUG FOR THE WEIGHING VIAL AND ROTATABLE THEREIN, A PORT IN THE WEIGHING VIAL, APORT IN THE REMOVABLE PLUG ADAPTED WHEN BROUGHT INTO REGISTER WITH THE PORT IN THE WEIGHING VIAL TO AFFORD COMMUNICATION BETWEEN THE INTERIOR OF THE VIAL AND THE INTERIOR OF THE REACTION FLASK, A LOCKING ELEMENT PROVIDED ON THE INTERIOR SURFACE OF THE REACTION FLASK, LOCKING MEANS ON SAID WEIGHING VIAL FOR RELEASABLY ENGAGING SAID LOCKING ELEMENT TO LIMIT ROTATION OF SAID VIAL AND MEANS REMOVABLY CONNECTED TO THE HOLLOW PLUG OF SAID VIAL FOR ROTATING THE PLUG FORM OUTSIDE OF THE REACTION FLASK UNTIL THE PORTS ARE IN COMMUNICATION FOR MIXING THE CORROSIVE SUBSTANCE WITH THE NUTRALIZING AGENT WITHIN SAID FLASK AND VIAL.
Claim 2
Independent Claim
177 words
AN APPARATUS FOR REACTING CORROSIVE ACID SUBSTANCES SUCH AS HYDROGEN FLUORIDE, HYDROFLUORIC ACID, FUMING NITRIC ACID AND MIXTURES OF THE LIKE WITH A NEUTRALIZING AGENT COMPRISING A GLASS FLASK HAVING A FILLER NECK PORTION, A CORROSION RESISTANT WEIGHING VIAL FOR CONTAINING THE CORROSIVE SUBSTANCE SAID VIAL BEING INSERTABLE INTO THE FLASK THROUGH THE NECK PORTION THEREOF, A REMOVABLE HOLLOW PLUG FOR THE WEIGHING VIAL AND ROTATABLE THEREIN, A PORT IN THE WEIGHING VIAL, APORT IN THE REMOVABLE PLUG ADAPTED WHEN BROUGHT INTO REGISTER WITH THE PORT IN THE WEIGHING VIAL TO AFFORD COMMUNICATION BETWEEN THE INTERIOR OF THE VIAL AND THE INTERIOR OF THE REACTION FLASK, A LOCKING ELEMENT PROVIDED ON THE INTERIOR SURFACE OF THE REACTION FLASK, LOCKING MEANS ON SAID WEIGHING VIAL FOR RELEASABLY ENGAGING SAID LOCKING ELEMENT TO LIMIT ROTATION OF SAID VIAL AND MEANS REMOVABLY CONNECTED TO THE HOLLOW PLUG OF SAID VIAL FOR ROTATING THE PLUG FORM OUTSIDE OF THE REACTION FLASK UNTIL THE PORTS ARE IN COMMUNICATION FOR MIXING THE CORROSIVE SUBSTANCE WITH THE NUTRALIZING AGENT WITHIN SAID FLASK AND VIAL.
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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |