US2087441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated fibrous structure and method of producing same
Assignee: Columbian Rope Co
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Filing: 1935-06-17
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Granted: 1937-07-20
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Expires: 1955-06-17
Abstract
No abstract record available.
Inventors
- 👤 Harold G Metcalf
- 👤 Kenneth H Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:30
CPC Classifications
D; D01; D01G; D01G99/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24124; Y10T428/24132; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249941
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) | 1940-07-19 | 1941-01-18 | 1941-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-19 | 1945-01-18 | 1945-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-19 | 1949-01-18 | 1949-07-20 | $7700.00 | Window Closed / Lapsed |