US2492498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of inorganic fibrous laminate
Assignee: Dow Silicones Corp
•
Filing: 1946-04-16
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Granted: 1949-12-27
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Expires: 1966-04-16
Abstract
No abstract record available.
Inventors
- 👤 William W Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:18
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/30; C04B26/32; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T442/00; Y10T442/20; Y10T442/2926; Y10T442/2992; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3553; Y10T442/40; Y10T442/488; Y10T442/60; Y10T442/659; Y10T442/67
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2389807A
Cited
US2128097A
Cited
US2265962A
Cited
US2258218A
Cited
US2371068A
Cited
US2435147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |