US2811769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing an asphalt-bonded glass fiber mat
Assignee: Lubrizol Corp
•
Filing: 1954-08-10
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Granted: 1957-11-05
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Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Willis G Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:29
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/02; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/502; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587; D04H1/64; D04H1/66; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2331146A
Cited
US2457784A
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US2305516A
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US2372433A
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US2569169A
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US2477555A
Cited
US2550465A
Cited
US2695257A
Cited
US2702069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |