US2593279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclaiming rubber
Assignee: U S RUBBER RECLAIMING Co
•
Filing: 1947-07-11
•
Granted: 1952-04-15
•
Expires: 1967-07-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Elgin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:15
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J11/18; C08J11/28; C08J2321/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
A METHOD OF RECLAIMING VULCANIZED RUBBER WHICH COMPRISES HEATING SUCH MATERIAL TO A TEMPERATURE NOT SUBSTANTIALLY LESS THAN 300* F. AND BELOW THE TEMPERATURE OF THERMAL DECOMPOSITION OF THE RUBBER IN THE PRESENCE OF NOT OVER 15% OF AN ORGANIC SULFUR-CONTAINING COMPOUND OF THE CLASS CONSISTING OF ALIPHATIC MERCAPTANS, AND ALIPHATIC DISULFIDES IN WHICH A CARBON TO WHICH SULFUR IS DIRECTLY ATTACHED HAS THREE CARBON ATOMS ATTACHED THERETO.
References Cited (Backward Citations)
US2191266A
Cited
US2193624A
Cited
US2333810A
Cited
US2414145A
Cited
US2408296A
Cited
US2359122A
Cited
US2415449A
Cited
US2425840A
Cited
US2510808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |