Patent US2881471A successfully refreshed from Google Patents.
US2881471A
Expired / Lapsed
US
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Apparatus for forming and treating fibers
Assignee: Owens Corning
•
Filing: 1954-12-28
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Granted: 1959-04-14
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Expires: 1974-12-28
Abstract
No abstract record available.
Inventors
- 👤 Henry J Snow
- 👤 York Jesse Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:31
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/06; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/14; C03C25/146; C03C25/24; C03C25/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB470675A
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US2219346A
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US2287007A
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DE766315C
Cited
FR972326A
Cited
US2550465A
Cited
US2653416A
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US2600843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |