Patent US3379043A successfully refreshed from Google Patents.
US3379043A
Expired / Lapsed
US
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Pressure vessel for forming apparatus
Assignee: AT&T Inc
•
Filing: 1965-03-01
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Granted: 1968-04-23
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Francis J Fuchs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:37
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/033; B21D26/049; B30; B30B; B30B11/00; B30B11/004; Y; Y10; Y10S; Y10S425/00; Y10S425/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3123862A
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US667525A
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US2558035A
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US2937606A
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US3060507A
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US3030776A
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US3099993A
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US3132569A
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US3224042A
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US3255490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |