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Patent US2294069A successfully refreshed from Google Patents.
US2294069A
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US
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Method of rendering villous surfaces noncrocking
Assignee: VISCOL Co
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Filing: 1940-03-28
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Granted: 1942-08-25
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Expires: 1960-03-28
Abstract
No abstract record available.
Inventors
- 👤 Clinton L Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:02
CPC Classifications
C; C14; C14C; C14C11/00; D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M15/00; D06M15/01; D06M15/03; D06M15/05; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-08-24 | 1946-02-23 | 1946-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-24 | 1950-02-23 | 1950-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-24 | 1954-02-23 | 1954-08-25 | $7700.00 | Window Closed / Lapsed |