Patent US3484271A successfully refreshed from Google Patents.
US3484271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two step in situ reaction for producing coated paper webs
Assignee: Riegel Paper Corp
•
Filing: 1965-06-25
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Granted: 1969-12-16
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Expires: 1985-06-25
Abstract
No abstract record available.
Inventors
- 👤 Adam F Kaliski
- 👤 Robert M Husband
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:02
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31971; Y10T428/31993; Y10T428/31996
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |