Patent US2486121A successfully refreshed from Google Patents.
US2486121A
Expired / Lapsed
US
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Web spreading device
Assignee: Ecusta Paper Corp
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Filing: 1947-01-24
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Granted: 1949-10-25
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Expires: 1967-01-24
Abstract
No abstract record available.
Inventors
- 👤 William H Corn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:56
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/022; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4148
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) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |