US2424831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for waterproofing and fireproofing textile material, and the treated material
Assignee: QUAKER CHEMICAL PRODUCTS Corp
•
Filing: 1942-11-24
•
Granted: 1947-07-29
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Expires: 1962-11-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Klaber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:10
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/80; D06M11/82; D06M13/00; D06M13/10; D06M13/184; D06M13/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190109695A
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GB175746A
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US2334098A
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US2381487A
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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) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |