US2789155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive silicone rubber sheet material and tapes and method of preparing the same
Assignee: General Electric Co
•
Filing: 1955-07-13
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Granted: 1957-04-16
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Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Walter L Marshall
- 👤 Leo S Kohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/25; C09J2483/00; C09J2483/006; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/2852; Y10T428/2857; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A CURABLE ADHESIVE SHEET MATERIAL COMPOSED OF (1) A BACKING COMPRISING A CURED, ELASTOMERIC ORGANOPOLYSILOXANE FILLED WITH A FINELY DIVIDED SILICA FILLER AND (2) A HEATED-CURABLE ADHESIVE COATING UPON SAID BACKING COMPRISING A SUBSTANTIALLY TACK-FREE AND NON-BLOCKING LAYER COMPOSED OF (A) AN UNCURED ELASTOMERIC ORGANOPOLYSILOXANE FILLED WITH (B) A MIXTURE OF FINELY DI-VIDED FILLERS COMPOSED OF A MAJOR PROPORTION OF RED IRON OXIDE AND A MINOR PROPORTION OF A REINFORCING SILICA FILLER, AND (C) A CURING AGENT FOR THE ORGANOPOLYSILOZANE, THE ORGANIC GROUPS OF SAID ORGANOPOLYSILOXANES IN (1) AND (2) BEING SELECTED FROM THE CLASS CONSISTING OF METHYL AND PHENYL GROUPS, THERE BEING PRESENT FROM ABOUT 1.98 TO 2.05 ORGANIC GROUPS PER SILICON ATOM ATTACHED TO SILICON BY CARBON-SILICON LINKAGES.
Claim 2
Dependent Claim
120 words
A CURABLE ADHESIVE SHEET MATERIAL COMPOSED OF (1) A BACKING COMPRISING A CURED, ELASTOMERIC ORGANOPOLYSILOXANE FILLED WITH A FINELY DIVIDED SILICA FILLER AND (2) A HEATED-CURABLE ADHESIVE COATING UPON SAID BACKING COMPRISING A SUBSTANTIALLY TACK-FREE AND NON-BLOCKING LAYER COMPOSED OF (A) AN UNCURED ELASTOMERIC ORGANOPOLYSILOXANE FILLED WITH (B) A MIXTURE OF FINELY DI-VIDED FILLERS COMPOSED OF A MAJOR PROPORTION OF RED IRON OXIDE AND A MINOR PROPORTION OF A REINFORCING SILICA FILLER, AND (C) A CURING AGENT FOR THE ORGANOPOLYSILOZANE, THE ORGANIC GROUPS OF SAID ORGANOPOLYSILOXANES IN (1) AND (2) BEING SELECTED FROM THE CLASS CONSISTING OF METHYL AND PHENYL GROUPS, THERE BEING PRESENT FROM ABOUT 1.98 TO 2.05 ORGANIC GROUPS PER SILICON ATOM ATTACHED TO SILICON BY CARBON-SILICON LINKAGES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |