US3518405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of annealed tubing by strand annealing process
Assignee: WOLVERINE ACQUISITION CORP A DE CORP
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Filing: 1968-02-19
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Granted: 1970-06-30
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Expires: 1988-02-19
Abstract
No abstract record available.
Inventors
- 👤 James L Herren
- 👤 Edward P Habdas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:56
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/34; C21D1/40; H; H05; H05B; H05B3/00; H05B3/0004; H05B3/0009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2240019A
Cited
US3398258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |