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US2464342A
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Manufacture of waterproof and water-repellent noninflammable fibrous materials
Assignee: Individual
•
Filing: 1943-04-16
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Granted: 1949-03-15
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Expires: 1963-04-16
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Pollak
- 👤 Fassel Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:27
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S260/47; Y10T; Y10T442/00; Y10T442/20; Y10T442/2213; Y10T442/2525; Y10T442/2533; Y10T442/2631
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB446379A
Cited
US2097509A
Cited
GB476043A
Cited
US2161808A
Cited
US2197357A
Cited
US2339203A
Cited
US2305035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |