Patent US1649527A successfully refreshed from Google Patents.
US3471318A
Expired / Lapsed
US
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Finished flame-resistant textile materials
Assignee: Nelson Silk Ltd
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Filing: 1966-08-31
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Granted: 1969-10-07
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Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Cyril Aubrey Redfarn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:22
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; D06M13/292; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/2697; Y10T442/2861; Y10T442/2869
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1936985A
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US2574515A
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US2660543A
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US2779691A
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US2953480A
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US2876117A
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US2876118A
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US3266918A
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US3321330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |