US2997457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfone-containing organopolysiloxanes
Assignee: General Electric Co
•
Filing: 1958-05-13
•
Granted: 1961-08-22
•
Expires: 1978-05-13
Abstract
No abstract record available.
Inventors
- 👤 Simon W Kantor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:11
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A COMPOSITION CONVERTIBLE TO THE SOLID, CURED ELASTIC STATE COMPRISING AN ORGANOPOLYSILOXANE IN WHICH AT LEAST SOME OF THE ORGANO GROUPS ARE SILICON-BONDED
Claim 2
Dependent Claim
23 words
A COMPOSITION CONVERTIBLE TO THE SOLID, CURED ELASTIC STATE COMPRISING AN ORGANOPOLYSILOXANE IN WHICH AT LEAST SOME OF THE ORGANO GROUPS ARE SILICON-BONDED
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |