Patent US3741932A successfully refreshed from Google Patents.
US3741932A
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US
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Curable epoxy organopolysiloxanes having pendant chromophoric groups
Assignee: 3M Co
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Filing: 1972-04-10
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Granted: 1973-06-26
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Expires: 1992-04-10
Abstract
Abstract ORGANOPOLYSILOXANE HAVING PENDANT OXIRANE GROUPS AND PENDANT CHROMOPHORIC GROUPS ARE PROVIDED. THESE ORGANOPOLYSILOXANES CURE TO TRANSPARENT CROSS-LINKED RESINS WHICH ARE COLORED OR FLUORESCE IN ULTRAVIOLET LIGHT AND ARE COMPATIBLE WITH OTHER SILICONE RESINS.
Inventors
- 👤 C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:06
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/392; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
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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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |