US3427689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold and method for the preparation thereof
Assignee: Dow Chemical Co
•
Filing: 1966-11-21
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Granted: 1969-02-18
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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
2026-10-27 05:40
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/38; B29C33/3842; B29C33/3857; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249986; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2907070A
Cited
US2908663A
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US3150118A
Cited
US3215763A
Cited
US3239590A
Cited
US3269887A
Cited
US3295818A
Cited
US3317178A
Cited
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 |