US2482816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of waterproofing textiles with zirconyl compounds
Assignee: NL Industries Inc
•
Filing: 1943-06-08
•
Granted: 1949-09-27
•
Expires: 1963-06-08
Abstract
No abstract record available.
Inventors
- 👤 Henry L Van Mater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/184; D06M13/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191504457A
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US1536254A
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US1717483A
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US1739840A
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US1925914A
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US1896381A
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US2221975A
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US2316057A
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US2328431A
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US2345142A
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US2316141A
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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) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |