US2754887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a tubeless tire
Assignee: Bridgestone Firestone Inc
•
Filing: 1953-12-24
•
Granted: 1956-07-17
•
Expires: 1973-12-24
Abstract
No abstract record available.
Inventors
- 👤 Clyde R Wykoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:38
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0681; B29D30/38; B29D30/42; B60; B60C; B60C5/00; B60C5/12; B60C5/14; B29D2030/0682; B29D2030/421; B29D2030/423; B29D2030/427; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10855; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/108
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
208 words
THE METHOD OF MAKING THE INSIDE PLIES OF TUBELESS PNEUMATIC CORD FABRIC TYPE TIRES IMPREVIOUS TO TIRE INFLATIONARY AIR COMPRISING, PREPARING A ROLL OF CORD TIRE FABRIC BY COATING SAME WITH RUBBER ON A RUBBER CALENDER; CUTTING TIRE PLY STRIPS OF PROPER WIDTH, FOR INSIDE PLIES, FOR SAID TIRES, FROM SAID ROLL; CALENDERING A STRIP OF AIRIMPREVIOUS RUBBER MATERIAL, APPLYING SAID STRIP OF RUBBERY MATERIAL IN PERMANENT RELATION TO THE CENTER PORTION OF ONE SIDE OF SAID PLY STRIP, SAID RUBBERY MATERIAL STRIP BEING PLACED THE ENTIRE LENGTH OF SAID PLY STRIP WITH THE EDGES OF SAID RUBBER MATERIAL STRIP SPACED FROM THE EDGES THEREOF; CUTTING PROPER LENGTHS FROM THE ASSEMBLED PLY STRIP AND STRIP OF SAID RUBBERY MATERIAL FOR USE AS THE INSIDE PLIES OF SAID TIRES; REMOVING AT LEAST ONE CORD FROM AN END OF SAID INSIDE PLY LEAVING AN EXTENSION OF SAID RUBBERY MATERIAL STRIP BEYOND THE END OF THE CORD FABRIC PORTION OF THE INNER PLY FROM WHICH SAID CORD OR CORDS HAVE BEEN REMOVED, SPLICING THE ENDS OF THE FABRIC PLY WITH THE CORDS OF THE ENDS PARALLEL AND LAP SPLICING SAID RUBBERY STRIP ON SAID FIRST PLY BY LAPPING SAID EXTENSION THEREOF OVER THE OTHER END OF SAID FIRST CORD FABRIC PLY.
References Cited (Backward Citations)
US2431035A
Cited
US2501644A
Cited
US2480811A
Cited
US2645265A
Cited
US2541550A
Cited
US2615487A
Cited
US2676637A
Cited
US2688996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |