US2215733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of uniform resinous articles
Assignee: Dow Chemical Co
•
Filing: 1938-02-03
•
Granted: 1940-09-24
•
Expires: 1958-02-03
Abstract
No abstract record available.
Inventors
- 👤 Donald L Gibb
- 👤 Richard D Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:52
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/22; B29C39/38; B29C37/00; B29C37/006; B29K; B29K2025/00; B29K2033/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-09-24 | 1944-03-25 | 1944-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-24 | 1948-03-25 | 1948-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-24 | 1952-03-25 | 1952-09-24 | $7700.00 | Window Closed / Lapsed |