Patent US2477330A successfully refreshed from Google Patents.
US2477330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of hydrogen halide from organo-substituted polysiloxanes
Assignee: General Electric Co
•
Filing: 1947-08-07
•
Granted: 1949-07-26
•
Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 Charles D Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:05
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/32; C08G77/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2398672A
Cited
US2383827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |