Patent US2666369A successfully refreshed from Google Patents.
US2666369A
Expired / Lapsed
US
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Method of making soft papers adaptable to impregnation
Assignee: Individual
•
Filing: 1952-05-29
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Granted: 1954-01-19
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Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Nicholas J Niks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:28
CPC Classifications
D; D21; D21F; D21F11/00; D21F11/14; D21F11/02; D21F5/00; D21F5/001; D21F5/002; D21F9/00; D21F9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315924A
Cited
US1163252A
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US1843656A
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US1968437A
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US1909083A
Cited
US1891927A
Cited
US1951714A
Cited
US2429338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |