Patent US2881732A successfully refreshed from Google Patents.
US2881732A
Expired / Lapsed
US
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Apparatus for coating glass fiber strand
Assignee: PPG Industries Inc
•
Filing: 1954-05-19
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Granted: 1959-04-14
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Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Chrystman Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:49
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/20; D; D01; D01D; D01D11/00; D01D11/06; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US582667A
Cited
CA488361A
Cited
US1930446A
Cited
US2133238A
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US2283014A
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US2272177A
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US2344494A
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US2542064A
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US2522289A
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US2547047A
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US2775022A
Cited
US2763563A
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 |