US3105292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making brake drums
Assignee: ZF Active Safety US Inc
•
Filing: 1959-02-24
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Granted: 1963-10-01
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Jeune Frank H Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:19
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; F; F16; F16D; F16D65/00; F16D65/02; F16D65/10; F16D2065/13; F16D2065/1304; F16D2065/132; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD OF MAKING A BRAKE DRUM FORMED OF A SHELL HAVING AN ANNULAR FLANGE OF AN ALUMINUM CONTAINING METAL AND A FERROUS METAL LINER RECEIVED WITHIN SAID FLANGE, COMPRISING THE STEPS OF PROVIDING A THIN COATING OF AN ALUMINUM CONTAINING METAL ON THE OUTER SURFACE OF SAID LINER HAVING A FERRO-ALUMINUM BOND AT THE INTERFACE BETWEEN SAID COATING AND LINER, INSERTING THE COATED LINER CONCENTRICALLY WITHIN SAID FLANGE WITH THE COATING IN RADIAL
Claim 2
Independent Claim
74 words
A METHOD OF MAKING A BRAKE DRUM FORMED OF A SHELL HAVING AN ANNULAR FLANGE OF AN ALUMINUM CONTAINING METAL AND A FERROUS METAL LINER RECEIVED WITHIN SAID FLANGE, COMPRISING THE STEPS OF PROVIDING A THIN COATING OF AN ALUMINUM CONTAINING METAL ON THE OUTER SURFACE OF SAID LINER HAVING A FERRO-ALUMINUM BOND AT THE INTERFACE BETWEEN SAID COATING AND LINER, INSERTING THE COATED LINER CONCENTRICALLY WITHIN SAID FLANGE WITH THE COATING IN RADIAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |