US2560040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire retreading and repair materials
Assignee: Bridgestone Firestone Inc
•
Filing: 1949-01-21
•
Granted: 1951-07-10
•
Expires: 1969-01-21
Abstract
No abstract record available.
Inventors
- 👤 Robert P Whipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:51
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10882; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31837
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
CAMELBACK COMPRISING A RUBBERY ELEMENT ESSENTIALLY COMPOSED OF A VULCANIZABLE COPOLYMER OF 1,3-BUTADIENE AND STYRENE, AND A THIN FILM OF VULCANIZABLE NATURAL RUBBER, HAVING INCORPORATED THEREIN A STABLE TERPENE OIL, SAID FILM BEING DEPOSITED ON AND ATTACHED TO A FACE OF THE ELEMENT.
Claim 2
Dependent Claim
43 words
CAMELBACK COMPRISING A RUBBERY ELEMENT ESSENTIALLY COMPOSED OF A VULCANIZABLE COPOLYMER OF 1,3-BUTADIENE AND STYRENE, AND A THIN FILM OF VULCANIZABLE NATURAL RUBBER, HAVING INCORPORATED THEREIN A STABLE TERPENE OIL, SAID FILM BEING DEPOSITED ON AND ATTACHED TO A FACE OF THE ELEMENT.
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 |