Patent US2457777A successfully refreshed from Google Patents.
US2457777A
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US
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Apparatus for guiding and threading fibers
Assignee: Owens Corning
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Filing: 1945-04-07
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Granted: 1948-12-28
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Expires: 1965-04-07
Abstract
No abstract record available.
Inventors
- 👤 William F Holstchulte
- 👤 Samuel D Philipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:31
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/06; C03B37/065; Y; Y10; Y10S; Y10S425/00; Y10S425/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE649489C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-28 | 1952-06-28 | 1952-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-28 | 1956-06-28 | 1956-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-28 | 1960-06-28 | 1960-12-28 | $7700.00 | Window Closed / Lapsed |