Patent US3486925A successfully refreshed from Google Patents.
US3486925A
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US
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Flexible,fibrous,porous sheet containing cured epoxy resin and process of making same
Assignee: 3M Co
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Filing: 1966-12-12
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Granted: 1969-12-30
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Expires: 1986-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome J Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:23
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/504; C08G65/00; C08G65/02; C08G65/04; C08L; C08L63/00; C08L71/00; C08L71/02; C14; C14C; C14C11/00; C14C11/003; C14C9/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/31504; Y10T428/31511; Y10T428/31551; Y10T428/31558; Y10T442/00; Y10T442/20; Y10T442/2221; Y10T442/2246; Y10T442/2549; Y10T442/2566; Y10T442/273
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |