US2306924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard infusible resinous condensation products
Assignee: GAF Chemicals Corp
•
Filing: 1939-02-08
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Granted: 1942-12-29
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Expires: 1959-02-08
Abstract
No abstract record available.
Inventors
- 👤 Zerweck Werner
- 👤 Schubert Max
- 👤 Heinrich Ernst
- 👤 Pinten Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:01
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/025; C08G16/0256; C08G12/00; C08G12/02; C08G12/26
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) | 1945-12-28 | 1946-06-29 | 1946-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-28 | 1950-06-29 | 1950-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-28 | 1954-06-29 | 1954-12-29 | $7700.00 | Window Closed / Lapsed |