US3138299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squeeze bottle pipette
Assignee: Coleman Instruments Corp
•
Filing: 1961-01-09
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Granted: 1964-06-23
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 John J J Staunton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:16
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0282; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A PIPETTE COMPRISING A SQUEEZE BOTTLE HAVING AN OPEN MOUTH, A RESILIENT DOME COVERING THE MOUTH OF THE BOTTLE HAVING A VENT THROUGH THE TOP THEREOF, AND A PIPETTE TUBE EXTENDING LATERALLY THROUGH THE WALL OF SAID DOME THE IMPROVEMENT COMPRISING A PLUG MEMBER DISPOSED WITHIN SAID MOUTH, AN OPENING EXTENDING THROUGH SAID PLUG MEMBER TO PERMIT COMMUNICATION BETWEEN THE INTERIOR OF SAID BOTTLE AND SAID DOME, SAID OPENING TERMINATING IN A WELL OF LARGER DIAMETER THAN SAID OPENING, AND A BAFFLE MEMBER DISPOSED WITHIN SAID WELL FOR DEFLECTING FLUID FLOW FROM SAID OPENING LATERALLY INTO SAID WELL, THEREBY PREVENTING FLUID FROM BEING FORCED OUT THROUGH THE VENT.
Claim 2
Dependent Claim
109 words
IN A PIPETTE COMPRISING A SQUEEZE BOTTLE HAVING AN OPEN MOUTH, A RESILIENT DOME COVERING THE MOUTH OF THE BOTTLE HAVING A VENT THROUGH THE TOP THEREOF, AND A PIPETTE TUBE EXTENDING LATERALLY THROUGH THE WALL OF SAID DOME THE IMPROVEMENT COMPRISING A PLUG MEMBER DISPOSED WITHIN SAID MOUTH, AN OPENING EXTENDING THROUGH SAID PLUG MEMBER TO PERMIT COMMUNICATION BETWEEN THE INTERIOR OF SAID BOTTLE AND SAID DOME, SAID OPENING TERMINATING IN A WELL OF LARGER DIAMETER THAN SAID OPENING, AND A BAFFLE MEMBER DISPOSED WITHIN SAID WELL FOR DEFLECTING FLUID FLOW FROM SAID OPENING LATERALLY INTO SAID WELL, THEREBY PREVENTING FLUID FROM BEING FORCED OUT THROUGH THE VENT.
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |