US2763675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxymethylheptamethylcyclotetrasiloxane
Assignee: General Electric Co
•
Filing: 1953-09-25
•
Granted: 1956-09-18
•
Expires: 1973-09-25
Abstract
No abstract record available.
Inventors
- 👤 Robert J Prochaska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:18
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/21; C08; C08K; C08K5/00; C08K5/54; C08K5/549
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
CARBOXYMETHYLHEPTAMETHYLCYCLOTETRASILOXANE HAVING THE FORMULA
Claim 2
Dependent Claim
4 words
CARBOXYMETHYLHEPTAMETHYLCYCLOTETRASILOXANE HAVING THE FORMULA
References Cited (Backward Citations)
US2474578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |