Patent US2775637A successfully refreshed from Google Patents.
US3250441A
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Liquid-dispensing apparatus
Assignee: Individual
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Filing: 1964-12-28
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Granted: 1966-05-10
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Levowitz David
- 👤 Weber Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:04
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0203; B01L3/0206; B01J; B01J4/00; B01J4/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
LIQUID-DISPENSING APPARATUS INCLUDING A SYRINGE COMPRISING A BARREL AND A PISTON SLIDABLE THEREIN, A SOURCE OF LIQUID TO BE DISPENSED, AN INLET TUBE COUPLED BETWEEN SAID SOURCE AND SAID SYRINGE, AN OUTLET TUBE COUPLED TO SAID SYRINGE, SAID INLET AND OUTLET TUBES BEING HORIZONTALLY ALIGNED, A LONGITUDINAL GROOVE IN SAID PISTON HAVING AN UPPER END AND A LOWER END, THE UPPER END OF SAID GROOVE BEING ALIGNED WITH SAID
Claim 2
Dependent Claim
69 words
LIQUID-DISPENSING APPARATUS INCLUDING A SYRINGE COMPRISING A BARREL AND A PISTON SLIDABLE THEREIN, A SOURCE OF LIQUID TO BE DISPENSED, AN INLET TUBE COUPLED BETWEEN SAID SOURCE AND SAID SYRINGE, AN OUTLET TUBE COUPLED TO SAID SYRINGE, SAID INLET AND OUTLET TUBES BEING HORIZONTALLY ALIGNED, A LONGITUDINAL GROOVE IN SAID PISTON HAVING AN UPPER END AND A LOWER END, THE UPPER END OF SAID GROOVE BEING ALIGNED WITH SAID
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |