US2605509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing elastic thread
Assignee: Dow Chemical Co
•
Filing: 1945-08-10
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Granted: 1952-08-05
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Expires: 1965-08-10
Abstract
No abstract record available.
Inventors
- 👤 Robert R Dreisbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0078; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/731
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF PRODUCING A RUBBER-LIKE ELASTIC THREAD WHICH COMPRISES: MECHANICALLY WORKING AT AN ELEVATED TEMPERATURE AND DRYEXTRUDING THROUGH A THREAD-FORMING ORIFICE HAVING A DIAMETER BELOW 0.050 INCH A VULCANIZABLE PLASTIC COMPOSITION CONSISTING OF A RUBBER-LIKE COPOLYMER OF A MIXTURE OF 1.0 PART OF A LOWER ALIPHATIC CONJUGATED DIOLEFIN, 0.015 TO 0.8 PART OF AN ALPHA-METHYLENE-LOWER ALKYL AROMATIC COMPOUND, AND 0.0 TO 1.6 PARTS OF A LOWER ALKYL ALPHA-METHYLENE-LOWER ALKYL KETONE, TOGETHER WITH RUBBER - COMPOUNDING AND VULCANIZING AGENTS; AND CURING THE RESULTING EXTRUDED THREAD WHILE PREVENTING IT FROM ADHERING TO LIKE THREAD DURING THE CURING STEP.
Claim 2
Independent Claim
97 words
THE METHOD OF PRODUCING A RUBBER-LIKE ELASTIC THREAD WHICH COMPRISES: MECHANICALLY WORKING AT AN ELEVATED TEMPERATURE AND DRYEXTRUDING THROUGH A THREAD-FORMING ORIFICE HAVING A DIAMETER BELOW 0.050 INCH A VULCANIZABLE PLASTIC COMPOSITION CONSISTING OF A RUBBER-LIKE COPOLYMER OF A MIXTURE OF 1.0 PART OF A LOWER ALIPHATIC CONJUGATED DIOLEFIN, 0.015 TO 0.8 PART OF AN ALPHA-METHYLENE-LOWER ALKYL AROMATIC COMPOUND, AND 0.0 TO 1.6 PARTS OF A LOWER ALKYL ALPHA-METHYLENE-LOWER ALKYL KETONE, TOGETHER WITH RUBBER - COMPOUNDING AND VULCANIZING AGENTS; AND CURING THE RESULTING EXTRUDED THREAD WHILE PREVENTING IT FROM ADHERING TO LIKE THREAD DURING THE CURING STEP.
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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) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |