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US3434326A
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Method and apparatus for making annular parts of u-section
Assignee: Dite Bauche Coffres Forts Bauche Et Nicolle Et Cie sa Ets
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Filing: 1967-04-14
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Granted: 1969-03-25
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Expires: 1987-04-14
Abstract
No abstract record available.
Inventors
- 👤 Robert G C Serret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
B; B21; B21K; B21K21/00; B21K21/16; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14; B21J; B21J1/00; B21K1/00; B21K1/64; B21K21/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |