Patent US2520322A successfully refreshed from Google Patents.
US2520322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for mounting sheet material on backing sheets
Assignee: Individual
•
Filing: 1945-10-23
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Granted: 1950-08-29
•
Expires: 1965-10-23
Abstract
No abstract record available.
Inventors
- 👤 Mestre Luis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:20
CPC Classifications
B; B65; B65H; B65H37/00; B65H37/04; B65H1/00; B65H1/08; B65H1/14; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440856A
Cited
US1893523A
Cited
US2166388A
Cited
US2164371A
Cited
US2260540A
Cited
US2384768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |