US3778332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophilic-poromeric foam
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1971-07-28
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Granted: 1973-12-11
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Expires: 1991-07-28
Abstract
Abstract THIS INVENTION IS A HYDROPHILIC AND POROMERIC FOAM MADE BY A UNIQUE PROCESS THAT IS ADAPTED TO BE MADE INTO A SYNTHETIC LEATHER-LIKE MATERIAL HAVING MANY OF THE DESIRABLE AESTHETIC AND PHYSICAL PROPERTIES OF NATURAL LEATHER AND, IN ADDITION, IS MADE FROM RELATIVELY INEXPENSIVE MATERIALS.
Inventors
- 👤 L Line
- 👤 E Butler
- 👤 I Fak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:41
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; D06N3/142; D06N3/144; C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/30; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/68; D06N3/007; D06N3/0072; D06N3/04; D06N3/06; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S428/00; Y10S428/904; Y10S521/00; Y10S521/905; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/26; Y10T428/268
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |