Patent US2874406A successfully refreshed from Google Patents.
US2874406A
Expired / Lapsed
US
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Apparatus for manufacturing glass fibers
Assignee: SEALTITE INSULATION Manufacturing CORP
•
Filing: 1956-07-16
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Granted: 1959-02-24
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Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Miles S Firnhaber
- 👤 Ernest J Nygren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:26
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2328714A
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US2624912A
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US2609566A
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US2626166A
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US2587710A
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US2729849A
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US2707847A
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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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |