Patent US2779268A successfully refreshed from Google Patents.
US2779268A
Expired / Lapsed
US
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Stencil assembly with protective film
Assignee: Polychrome Corp
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Filing: 1952-10-16
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Granted: 1957-01-29
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Expires: 1972-10-16
Abstract
No abstract record available.
Inventors
- 👤 Robert G Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:40
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/24; B41N1/241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1069435A
Cited
US2177768A
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US2203280A
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US2256585A
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US2557875A
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US2688918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |