US3479779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite construction panel
Assignee: Dow Chemical Co
•
Filing: 1968-05-02
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Granted: 1969-11-25
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Expires: 1988-05-02
Abstract
No abstract record available.
Inventors
- 👤 Earl E Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:34
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/9681; E06B3/9682; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04B2001/8423; E04B2001/8428; E04B2001/8457; E04B2001/8461; E04B2001/8471; E04B2001/8476; E04B2001/848; E04B2001/8485; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24661
Claims Analysis
Total Claims: 0
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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) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |