US3618272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for lapping hypoid gearsets
Assignee: Ford Motor Co
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Filing: 1968-09-19
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Granted: 1971-11-09
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Expires: 1988-09-19
Abstract
Abstract GEAR TEETH OF AUTOMOTIVE HYPOID GEAR SETS ARE LAPPED WITH AN AQUEOUS BASE LAPPING COMPOSITION. THE LAPPING COMPOSITION IS APPLIED CONTINUOUSLY WHILE DRIVING ONE MEMBER OF THE GEAR SET AND BRAKING THE OTHER MEMBER. AN EXPENSIVE AND NON-HAZAROUS AQUEOUS SOLUTION IS USED TO REMOVE LAPPING COMPOSITION AFTER THE LAPPING OPERATION.
Inventors
- 👤 Thomas J Whalen
- 👤 Roy L Van Alsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:46
CPC Classifications
B; B24; B24B; B24B1/00; B23; B23F; B23F19/00; B23F19/02; B23F19/04; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1472
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |