US3327904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dispensing devices
Assignee: Greiner Scientific Corp
•
Filing: 1966-01-11
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Granted: 1967-06-27
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Expires: 1986-01-11
Abstract
No abstract record available.
Inventors
- 👤 George G Goda
- 👤 Coniglione Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:54
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; B01L3/0217; B01L3/0224; A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3155; A61M5/31551; A61M5/31565; A61M5/31576; A61M5/31578; A61M5/3158; A61M5/3159; A61M5/31591; A61M2005/3114; A61M2005/3115; A61M5/3129; A61M5/3137; A61M2005/3139; A61M5/31561
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A LIQUID DISPENSING DEVICE COMPRISING A TUBULAR BARREL MEMBER WITH FLANGED UPWARD OPEN END AND DOWNWARD DISCHARGE END, A PISTON RECIPROCABLY MOUNTED IN SAID BARREL, MEANS FOR VARIABLY PRESETTING THE VOLUME OF LIQUID TO BE DISPENSED, MEANS FOR PLUNGING SAID PISTON DOWNWARDLY IN SAID BARREL MEMBER, SPRING MEANS TO BIAS SAID PISTON UPWARDLY IN SAID BARREL MEMBER, STOP MEANS TO LIMIT SAID SPRING ACTUATED UPWARD TRAVEL OF SAID PISTON, A COMMON HOUSING AND SUPPORT MEMBER TO RETAIN SAID PISTON IN OPERATING ENGAGEMENT PROVIDED WITH FLEXIBLE ENGAGEMENT MEANS FOR SECURING AND LOCKING SAID BARREL MEMBER, SAID ENGAGEMENT MEANS COMPRISING AN INVERTED CUP-LIKE ENGAGEMENT COLLAR SLOTTED TO FORM FLEXIBLE LIP MEMBERS PROVIDED WITH RECESSED PARALLEL SHOULDERS TO PREVENT ROTATION OF SAID LOCKED BARREL MEMBER AND INWARDLY
Claim 2
Dependent Claim
124 words
A LIQUID DISPENSING DEVICE COMPRISING A TUBULAR BARREL MEMBER WITH FLANGED UPWARD OPEN END AND DOWNWARD DISCHARGE END, A PISTON RECIPROCABLY MOUNTED IN SAID BARREL, MEANS FOR VARIABLY PRESETTING THE VOLUME OF LIQUID TO BE DISPENSED, MEANS FOR PLUNGING SAID PISTON DOWNWARDLY IN SAID BARREL MEMBER, SPRING MEANS TO BIAS SAID PISTON UPWARDLY IN SAID BARREL MEMBER, STOP MEANS TO LIMIT SAID SPRING ACTUATED UPWARD TRAVEL OF SAID PISTON, A COMMON HOUSING AND SUPPORT MEMBER TO RETAIN SAID PISTON IN OPERATING ENGAGEMENT PROVIDED WITH FLEXIBLE ENGAGEMENT MEANS FOR SECURING AND LOCKING SAID BARREL MEMBER, SAID ENGAGEMENT MEANS COMPRISING AN INVERTED CUP-LIKE ENGAGEMENT COLLAR SLOTTED TO FORM FLEXIBLE LIP MEMBERS PROVIDED WITH RECESSED PARALLEL SHOULDERS TO PREVENT ROTATION OF SAID LOCKED BARREL MEMBER AND INWARDLY
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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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |