Patent US3197432A successfully refreshed from Google Patents.
US3197432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent resinous organopolysiloxanes
Assignee: General Electric Co
•
Filing: 1962-07-02
•
Granted: 1965-07-27
•
Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Harry F Lamoreaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:49
CPC Classifications
C; C08; C08G; C08G77/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0876; C07F7/0878; C07F7/0879; C08G77/48; C08G77/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN OPTICALLY CLEAR, SOLID, RESINOUS, THERMALLY STABLE, SOLVENT RESISTANT ORGANOPOLYSILOXANE COMPRISING A PLURALITY OF EITHT MEMBERED RINGS OF ALTERNATE SILICON ATOMS AND OXYGEN ATOMS, EACH OF SAID SILCION ATOMS BEING CONNECTED TO ONE MONOVALENT HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION AND SUBSTANTIALLY EVERY SILICON ATOM OF ONE OF SAID EIGHT MEMBERED RINGS BEING CONNECTED TO A SILICON ATOM OF ANOTHER OF SAID EIGHT MEMBERED RINGS THROUGH A DIVALENT ALKYLENE RADICA CONTAINING AT LEAST TWO CARBON ATOMS, WITH ANY VALENCES OF SILICON NOT ACCOUNTED FOR ABOVE BEING SATISFIED BY A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND MONOVALENT HYDROCARBON RADICALS CONTAINING OLEFINIC UNSATURATION.
Claim 2
Dependent Claim
104 words
AN OPTICALLY CLEAR, SOLID, RESINOUS, THERMALLY STABLE, SOLVENT RESISTANT ORGANOPOLYSILOXANE COMPRISING A PLURALITY OF EITHT MEMBERED RINGS OF ALTERNATE SILICON ATOMS AND OXYGEN ATOMS, EACH OF SAID SILCION ATOMS BEING CONNECTED TO ONE MONOVALENT HYDROCARBON RADICAL FREE OF ALIPHATIC UNSATURATION AND SUBSTANTIALLY EVERY SILICON ATOM OF ONE OF SAID EIGHT MEMBERED RINGS BEING CONNECTED TO A SILICON ATOM OF ANOTHER OF SAID EIGHT MEMBERED RINGS THROUGH A DIVALENT ALKYLENE RADICA CONTAINING AT LEAST TWO CARBON ATOMS, WITH ANY VALENCES OF SILICON NOT ACCOUNTED FOR ABOVE BEING SATISFIED BY A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND MONOVALENT HYDROCARBON RADICALS CONTAINING OLEFINIC UNSATURATION.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |