Patent US3454419A successfully refreshed from Google Patents.
US3454419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nylon-coated paper and process for producing same
Assignee: ST Regis Paper Co
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Filing: 1965-05-18
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Granted: 1969-07-08
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Expires: 1985-05-18
Abstract
No abstract record available.
Inventors
- 👤 Donald F Smith
- 👤 James Russell
- 👤 David R Deretchin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:18
CPC Classifications
B; B32; B32B; B32B27/00; D; D21; D21H; D21H19/00; D21H19/80; D21H19/82; D21H19/824; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746
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) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |