US3356346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test tube stirring support
Assignee: Individual
•
Filing: 1966-01-03
•
Granted: 1967-12-05
•
Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Landsberger Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:09
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/45; B01F33/452; B01F31/00; B01F31/44; B01F31/441
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A STIRRING SUPPORT IN COMBINATION WITH A MAGNETIC STIRRING MACHINE COMPRISING, MEANS FOR REMOVABLY CONNECTING SAID STIRRING SUPPORT ONTO SAID MACHINE WITHOUT SLIPPAGE AND WHEREIN SAID STIRRING SUPPORT DEFINES MEANS FOR SUPPORTING A PLURALITY OF VESSELS ADAPTED TO CONTAIN MATERIAL THEREIN FOR STIRRING, EACH OF SAID VESSELS INCLUDING MEANS AGITATED BY THE MAGNETIC FORCE PRODUCED BY SAID MAGNETIC STIRRING MACHINE FOR STIRRING THE MATERIAL WITHIN SAID VESSLES, EACH OF SAID VESSELS EXTENDING VERTICALLY AND WHEREIN SAID LAST-MENTIONED MEANS FURTHER COMPRISE A STIRRING BAR SLIGHTLY SMALLER THAN THE VERTICAL CROSS-SECTION OF SAID VESSEL, SAID STIRRING BAR HAVING SOUTH AND NORTH POLE ENDS EXTENDING VERTICALLY WITHIN SAID VESSEL AND SAID MACHINE COMPRISING MAGNETIC MEANS FOR ATTACHING AND REPELLING SAID STIRRING BAR UPON APPLYING A NORTH FIELD AND A SOUTH FIELD BENEATH SAID STIRRING BAR AND THEREBY VERTICALLY AGITATING THE STIRRING BAR TO STIR THE MATERIAL WITHIN SAID VESSEL.
Claim 2
Dependent Claim
146 words
A STIRRING SUPPORT IN COMBINATION WITH A MAGNETIC STIRRING MACHINE COMPRISING, MEANS FOR REMOVABLY CONNECTING SAID STIRRING SUPPORT ONTO SAID MACHINE WITHOUT SLIPPAGE AND WHEREIN SAID STIRRING SUPPORT DEFINES MEANS FOR SUPPORTING A PLURALITY OF VESSELS ADAPTED TO CONTAIN MATERIAL THEREIN FOR STIRRING, EACH OF SAID VESSELS INCLUDING MEANS AGITATED BY THE MAGNETIC FORCE PRODUCED BY SAID MAGNETIC STIRRING MACHINE FOR STIRRING THE MATERIAL WITHIN SAID VESSLES, EACH OF SAID VESSELS EXTENDING VERTICALLY AND WHEREIN SAID LAST-MENTIONED MEANS FURTHER COMPRISE A STIRRING BAR SLIGHTLY SMALLER THAN THE VERTICAL CROSS-SECTION OF SAID VESSEL, SAID STIRRING BAR HAVING SOUTH AND NORTH POLE ENDS EXTENDING VERTICALLY WITHIN SAID VESSEL AND SAID MACHINE COMPRISING MAGNETIC MEANS FOR ATTACHING AND REPELLING SAID STIRRING BAR UPON APPLYING A NORTH FIELD AND A SOUTH FIELD BENEATH SAID STIRRING BAR AND THEREBY VERTICALLY AGITATING THE STIRRING BAR TO STIR THE MATERIAL WITHIN SAID VESSEL.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |