US2494593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclaiming rubber
Assignee: U S RUBBER RECLAIMING Co
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Filing: 1947-09-20
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Granted: 1950-01-17
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Expires: 1967-09-20
Abstract
No abstract record available.
Inventors
- 👤 Edward F Sverdrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:16
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J11/18; C08J11/28; C08K; C08K5/00; C08K5/36; C08K5/45; C08J2321/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
27 words
A METHOD OF PLATICIZING VULCANIZED RUBBERLIKE DIOLEFINE POLYMER MATERIAL WHICH COMPRISES HEATING SUCH MATERIAL IN THE PRESENCE OF A THIOPHENE COMPOUND AND KNEADING TO PLASTICIZE THE PRODUCT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |