US2931422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming fibrous glass
Assignee: Owens Corning
•
Filing: 1954-10-26
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Granted: 1960-04-05
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Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 David M Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:15
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/16; B; B01; B01F; B01F25/00; B01F25/70; B29; B29C; B29C67/00; B29C67/24; B29C67/248; B29C67/249; C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/10; C03B37/16; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/14; C03C25/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |