Patent US3519475A successfully refreshed from Google Patents.
US3519475A
Expired / Lapsed
US
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Thermosetting resin coated asbestos yarn for use in dryer's felts
Assignee: Johns Manville Corp
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Filing: 1966-12-09
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Granted: 1970-07-07
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Expires: 1986-12-09
Abstract
No abstract record available.
Inventors
- 👤 Clifford Hoyle
- 👤 Edgar Gardner Stevens
- 👤 John Maxwell Gibb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:16
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/107; Y10T442/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2110388A
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US2168928A
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US2341735A
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US2787561A
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GB975062A
Cited
US3365358A
Cited
US3386939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |