US3630982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing composition with improved seal efficiency
Assignee: Dow Silicones Corp
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Filing: 1970-03-18
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Granted: 1971-12-28
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Expires: 1990-03-18
Abstract
Abstract A MIXTURE OF POLY-3,3,3-TRIFLUOROPROPYLMETHYL-SILOXANE FLUID, POLY -3,3,3 - TRIFLUOROPROPYLEMTHYLSILOXANE GUM, A SILICA FILLER, AN EXTENDING FILLER, A POLYTETRAFLUOROETHYIENE RESIN AND A POLYTETRAFLUOROETHYLENE TELOMER IS USEFUL AS A SEALING COMPOSITION, SUCH AS FOR FUEL TANKS.
Inventors
- 👤 James E Matherly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:30
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |