Patent US2317730A successfully refreshed from Google Patents.
US2317730A
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US
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Laminated sheet material
Assignee: MARBON Corp
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Filing: 1939-08-25
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Granted: 1943-04-27
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Expires: 1959-08-25
Abstract
No abstract record available.
Inventors
- 👤 William C Calvert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; B; B65; B65D; B65D65/00; B65D65/38; B65D65/42; D21H19/00; D21H19/10; D21H19/14; D21H19/36; D21H27/32; D21H27/34; D21H11/00; D21H11/02; D21H23/00; D21H23/02; D21H23/22; D21H23/46; D21H23/52; D21H23/56; D21H23/58; D21H23/60; D21H23/62; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31841; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
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) | 1946-04-26 | 1946-10-26 | 1947-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-26 | 1950-10-26 | 1951-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-26 | 1954-10-26 | 1955-04-27 | $7700.00 | Window Closed / Lapsed |