US3546328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for the production of heterofilaments
Assignee: DEWI M JONES
•
Filing: 1968-06-04
•
Granted: 1970-12-08
•
Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 Reginald M Lodge
- 👤 Dewi M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; D01F; D01F8/00; D01F8/04; Y; Y10; Y10S; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB784839A
Cited
US2815033A
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US2805465A
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US2936482A
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US3039173A
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US3006028A
Cited
US3239197A
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US3195865A
Cited
US3182106A
Cited
US3344472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |