Patent US3434938A successfully refreshed from Google Patents.
US3434938A
Expired / Lapsed
US
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Method and apparatus for producing metal screen sheet
Assignee: ThyssenKrupp Budd Co
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Filing: 1965-12-29
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Granted: 1969-03-25
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Expires: 1985-12-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert D Van Sciver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:14
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/08; B; B41; B41M; B41M3/00; H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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 |