US3460233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll-weld process for shape forming bodies of revolution
Assignee: McDonnell Douglas Corp
•
Filing: 1966-02-16
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Granted: 1969-08-12
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Richard T Pfaffenberger
- 👤 Leonard R Van Horik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:21
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04; B21; B21D; B21D22/00; B21D22/14; B21D22/16; B21D47/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123907A
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US1788382A
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US2059584A
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US2851770A
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US2988809A
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US3044160A
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US3072086A
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US3195491A
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US3186083A
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US3130487A
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US3321826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |