Patent US2221441A successfully refreshed from Google Patents.
US2221441A
Expired / Lapsed
US
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Coating evening means for paper laminating machines
Assignee: Individual
•
Filing: 1940-01-15
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Granted: 1940-11-12
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Expires: 1960-01-15
Abstract
No abstract record available.
Inventors
- 👤 George W Charters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:28
CPC Classifications
D; D21; D21H; D21H1/00; D21H1/02; D21H1/06; B; B05; B05C; B05C11/00; B05C11/02; B05C11/023; B05C11/025; D21H25/00; D21H25/08; D21H25/12; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727
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) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |