US3493460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retardant laminate
Assignee: Dow Chemical Co
•
Filing: 1966-11-21
•
Granted: 1970-02-03
•
Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 Leo J Windecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:26
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; B; B29; B29C; B29C70/00; B29C70/003; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T156/00; Y10T156/10; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249954; Y10T428/249971; Y10T428/249972; Y10T442/00; Y10T442/30; Y10T442/3325; Y10T442/3333; Y10T442/335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2894918A
Cited
US2928456A
Cited
US3025202A
Cited
US3194708A
Cited
US3223576A
Cited
US3158529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |