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Patent US3493425A successfully refreshed from Google Patents.
US3493425A
Expired / Lapsed
US
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Lubricated fibers
Assignee: Dow Silicones Corp
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Filing: 1967-02-01
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Granted: 1970-02-03
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Expires: 1987-02-01
Abstract
No abstract record available.
Inventors
- 👤 James K Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:27
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/10; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6433; D06M15/6436; D06M15/647; D06M15/653; D06M7/00; C; C10; C10M; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10N; C10N2040/00; C10N2040/46; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962
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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |