Patent US3500627A successfully refreshed from Google Patents.
US3500627A
Expired / Lapsed
US
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Synthetic textile yarn
Assignee: Hercules LLC
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Filing: 1968-07-31
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Granted: 1970-03-17
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Expires: 1988-07-31
Abstract
No abstract record available.
Inventors
- 👤 Charles W Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:43
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; B; B29; B29C; B29C48/00; B29C48/001; B29C67/00; D01; D01D; D01D5/00; D01D5/42; D01D5/423; B29C48/0018; B29C48/03; B29C48/05; B29C48/07; B29C48/08; B29C48/09; B29C48/11; B29C48/12; B29C48/13; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10S57/00; Y10S57/907; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T428/29; Y10T428/2913; Y10T428/298
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |