US3109084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test tube heater
Assignee: Thermolyne Corp
•
Filing: 1960-08-17
•
Granted: 1963-10-29
•
Expires: 1980-08-17
Abstract
No abstract record available.
Inventors
- 👤 William J Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
B; B01; B01L; B01L7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A TEST TUBE HEATER COMPRISING: AN ALUMINUM HEATER BLOCK HAVING A DARK ANODIZED SURFACE AND HAVING A PLURALITY OF ELONGATED CAVITIES THEREIN FOR RECEIVING INDIVIDUAL TEST TUBES OF GIVEN LENGTH, SAID CAVITIES HAVING A HEIGHT GREATER THAN ONE-HALF SAID LENGTH, SAID HEATER BLOCK FURTHER HAVING A CORRESPONDING PLURALITY OF VIEWING APARTURES EACH EXTENDING THROUGH ONLY THE BASE PORTION OF A RESPECTIVE ONE OF SAID CAVITIES TO PREMIT VISUAL INSPECTION AND CLEANING OF THE BASE PORTION OF SAID CAVITY; A PAIR OF COVER MEMBERS OF TRANSPARENT HEAT RESISTANT MATERIAL REMOVABLY MOUNTED ON OPPOSITE SIDES OF SAID BLOCK TO PREVENT AIR CIRCULATION THROUGH SAID VIEWING APERTURES AND SAID CAVITIES; AND HEATING MEANS, AT THE BASE OF SAID BLOCK, FOR HEATING SAID BLOCK AND THE CONTENTS THEREOF TO A PREDETERMINED TEMPERATURE.
Claim 2
Dependent Claim
128 words
A TEST TUBE HEATER COMPRISING: AN ALUMINUM HEATER BLOCK HAVING A DARK ANODIZED SURFACE AND HAVING A PLURALITY OF ELONGATED CAVITIES THEREIN FOR RECEIVING INDIVIDUAL TEST TUBES OF GIVEN LENGTH, SAID CAVITIES HAVING A HEIGHT GREATER THAN ONE-HALF SAID LENGTH, SAID HEATER BLOCK FURTHER HAVING A CORRESPONDING PLURALITY OF VIEWING APARTURES EACH EXTENDING THROUGH ONLY THE BASE PORTION OF A RESPECTIVE ONE OF SAID CAVITIES TO PREMIT VISUAL INSPECTION AND CLEANING OF THE BASE PORTION OF SAID CAVITY; A PAIR OF COVER MEMBERS OF TRANSPARENT HEAT RESISTANT MATERIAL REMOVABLY MOUNTED ON OPPOSITE SIDES OF SAID BLOCK TO PREVENT AIR CIRCULATION THROUGH SAID VIEWING APERTURES AND SAID CAVITIES; AND HEATING MEANS, AT THE BASE OF SAID BLOCK, FOR HEATING SAID BLOCK AND THE CONTENTS THEREOF TO A PREDETERMINED TEMPERATURE.
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |