US2824032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a milk sampling tube
Assignee: Individual
•
Filing: 1954-07-27
•
Granted: 1958-02-18
•
Expires: 1974-07-27
Abstract
No abstract record available.
Inventors
- 👤 Ellis L Rackleff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:12
CPC Classifications
B; B29; B29C; B29C65/00; B29C66/00; B29C66/70; B29C66/71; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/53462; Y; Y10; Y10S; Y10S285/00; Y10S285/909; Y10S29/00; Y10S29/035; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF MAKING SAMPLING TUBES COMPRISED OF PROGRESSIVELY FORMING A PAPER STRAW THE TOTAL LENGTH OF THE DESIRED TUBE, THEN FORMING A TUBULAR LINER OF PLASTIC MATERIAL HAVING THE PROPERTY OF ACQUIRING A SUBSTANTIAL PERMANENT EXPANSION WHEN HEATED, SUCH AS POLYSTRENE, THEN PLACING SAID LINER WITHIN ONE END OF SAID STRAW, AND THEN APPLYING STERILIZING HEAT TO SAID STRAW AND LINER IN THE APPROXIMATE RANGE BETWEEN 100*C. AND 126*C.
Claim 2
Independent Claim
70 words
A METHOD OF MAKING SAMPLING TUBES COMPRISED OF PROGRESSIVELY FORMING A PAPER STRAW THE TOTAL LENGTH OF THE DESIRED TUBE, THEN FORMING A TUBULAR LINER OF PLASTIC MATERIAL HAVING THE PROPERTY OF ACQUIRING A SUBSTANTIAL PERMANENT EXPANSION WHEN HEATED, SUCH AS POLYSTRENE, THEN PLACING SAID LINER WITHIN ONE END OF SAID STRAW, AND THEN APPLYING STERILIZING HEAT TO SAID STRAW AND LINER IN THE APPROXIMATE RANGE BETWEEN 100*C. AND 126*C.
References Cited (Backward Citations)
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US2376231A
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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) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |