US2545828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of reclaiming scrap of synthetic and natural rubbers
Assignee: Midwest Rubber Reclaiming Co
•
Filing: 1945-11-28
•
Granted: 1951-03-20
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:07
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J11/18; C08J11/20; C08J2321/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
THE PROCESS OF RECLAIMING PREVIOUSLY VULCANIZED RUBBER SCRAP COMPOSED OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, A RUBBERY COPOLYMER OF BUTADIENE AND STYRENE AND A RUBBERY COPOLYMER CONTAINING A MAJOR AMOUNT OF ISOBUTYLENE AND A MINOR AMOUNT OF A DIOLEFINE, WHICH CONSISTS IN ADDING TO ONE OF SAID SCRAPS NOT IN EXCESS OF 30% BY WEIGHT OF A RECLAIMING AGENT WHICH IS GRAY TOWER RESIN OIL OBTAINED AS A RESIDUAL BY-PRODUCT IN THE REFINING OF GASOLINE AND TREATING THE MIXTURE WITH STEAM UNTIL THE SCRAP IS SOFTENED AND RENDERED SUFFICIENTLY PLASTIC TO BE REUSED IN THE MANUFACTURE OF VULCANIZED ARTICLES.
References Cited (Backward Citations)
US2008102A
Cited
US2324980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |