US3428480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant cellulosic material,composition and method for making same
Assignee: Hooker Chemical Corp
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Filing: 1965-02-18
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Granted: 1969-02-18
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 George M Wagner
- 👤 Rex A Schad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:39
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/431; D06M15/53; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2656; Y10T442/2672; Y10T442/268
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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |