Patent US2560045A successfully refreshed from Google Patents.
US2560045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber vulcanization
Assignee: Bridgestone Firestone Inc
•
Filing: 1949-06-21
•
Granted: 1951-07-10
•
Expires: 1969-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr George E P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
THE METHOD OF VULCANIZING RUBBER WHICH INCLUDES HEATING A RUBBER AND SURFUR IN THE PRESENCE OF N-ISOBUTENYL-2-BENXOTHIAXOLE SULFENAMIDE.
Claim 2
Independent Claim
18 words
THE METHOD OF VULCANIZING RUBBER WHICH INCLUDES HEATING A RUBBER AND SURFUR IN THE PRESENCE OF N-ISOBUTENYL-2-BENXOTHIAXOLE SULFENAMIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |