US3318935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon material
Assignee: General Electric Co
•
Filing: 1961-12-18
•
Granted: 1967-05-09
•
Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Christian R Sporck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:37
CPC Classifications
C; C08; C08G; C08G77/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C08G77/48; C08G77/50; C08G77/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A CYCLIC ORGANOSILICON COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
7 words
A CYCLIC ORGANOSILICON COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US3086954A
Cited
US2562000A
Cited
US2684379A
Cited
US2709692A
Cited
US2780636A
Cited
US3053872A
Cited
US2954391A
Cited
US3037962A
Cited
US3135777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |