US2311781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin and process of producing the same
Assignee: Hercules Powder Co
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Filing: 1941-10-03
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Granted: 1943-02-23
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Expires: 1961-10-03
Abstract
No abstract record available.
Inventors
- 👤 Paul H Scrutchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/0293; C09; C09F; C09F1/00
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) | 1946-02-22 | 1946-08-24 | 1947-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-22 | 1950-08-24 | 1951-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-22 | 1954-08-24 | 1955-02-23 | $7700.00 | Window Closed / Lapsed |