US3809635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing the adhesion of a metal body surface to rubber
Assignee: Battelle Memorial Institute Inc
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Filing: 1971-11-04
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Granted: 1974-05-07
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Expires: 1991-11-04
Abstract
Abstract A METHOD OF INCREASING THE ADHESION OF THE SURFACE OF A METAL BODY, PARTICULARLY STEEL WIRE, TO RUBBER AND VICE VERSA BY COATING THE SURFACE OF THE METAL BOCY WITH A CARBON LAYER FIRMLY ADHERING THERETO. THE CARBON LAYER MAY BE APPLIED BY EVAPORATION OF CARBON UNDER VACUUM OR BY SUBJECTING THE SURFACE OF THE METAL BODY TO A CORROSIVE TREATMENT TO REMOVE THE METAL FROM THE SRFACE PORTION WHILE LEAVING THE CARBON.
Inventors
- 👤 J Gillot
- 👤 B Lux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C25; C25F; C25F3/00; C25F3/02; C25F3/06; C08J2321/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |