US3409968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a slotted blade by extruding
Assignee: Borg Warner Corp
•
Filing: 1966-10-03
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Granted: 1968-11-12
•
Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Denes Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
B; B21; B21K; B21K3/00; B21K3/04; B23; B23P; B23P15/00; B23P15/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A METHOD OF PRODUCING A TORQUE CONVERTER BLADE WITH AN INTERNAL CAVITY THEREIN COMPRISING: EXTRUDING A BLADE BLANK HAVING TWO END PORTIONS EACH HAVING CONVEX SURFACES AND A RELATIVELY THIN PORTION CONNECTING SAID TWO END PORTIONS TO DEFINE A LARGE SLOT BETWEEN SAID TWO END PORTIONS,
Claim 2
Independent Claim
46 words
A METHOD OF PRODUCING A TORQUE CONVERTER BLADE WITH AN INTERNAL CAVITY THEREIN COMPRISING: EXTRUDING A BLADE BLANK HAVING TWO END PORTIONS EACH HAVING CONVEX SURFACES AND A RELATIVELY THIN PORTION CONNECTING SAID TWO END PORTIONS TO DEFINE A LARGE SLOT BETWEEN SAID TWO END PORTIONS,
References Cited (Backward Citations)
US1516556A
Cited
US1718061A
Cited
GB359349A
Cited
US2019329A
Cited
US2344835A
Cited
US2723445A
Cited
US2759663A
Cited
US3011762A
Cited
US2997283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |