Patent US3031908A successfully refreshed from Google Patents.
US3031908A
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Apparatus for making valve push rods and the like
Assignee: Bultfabriks AB
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Filing: 1958-06-20
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Granted: 1962-05-01
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Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Lejdegard Sixten Harald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:57
CPC Classifications
B; B21; B21J; B21J9/00; B21J9/02; B21J9/06; B21K; B21K27/00; B21K27/06; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/7513; Y10T83/869; Y10T83/8772
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US42104A
Cited
US2733503A
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US1619495A
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US2303760A
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US2559140A
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US2689359A
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US2755544A
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US2800814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |