Patent US2565491A successfully refreshed from Google Patents.
US2565491A
Expired / Lapsed
US
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Film structure and method for producing the same
Assignee: Individual
•
Filing: 1945-06-20
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Granted: 1951-08-28
•
Expires: 1965-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Carleton Shurtleff Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:02
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/06; B; B44; B44C; B44C1/00; B44C1/005; D06N3/0056; D06N3/0065; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24479; Y10T428/24612; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/31859; Y10T428/31877; Y10T428/31909; Y10T428/31928
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) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |