US3460981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water repellent and/or release treatment
Assignee: Dow Silicones Corp
•
Filing: 1968-02-27
•
Granted: 1969-08-12
•
Expires: 1988-02-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph Woodward Keil
- 👤 Clyde Lee Whipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31645; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2612458A
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US2503919A
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US2814572A
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US2881184A
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US2947771A
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US2949434A
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US2921950A
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US3022270A
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US3014814A
Cited
US3085908A
Cited
US3175921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |