Patent US3463587A successfully refreshed from Google Patents.
US3463587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum frame for silk screen stencils
Assignee: Advance Process Supply Co
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Filing: 1967-06-19
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Granted: 1969-08-26
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Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 Claude H Oltra
- 👤 John Deluca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:03
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/20; G03F; G03F7/00; G03F7/20; G03F7/2002; G03F7/2014
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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |