US3567783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing polyphenyl ethers
Assignee: General Electric Co
•
Filing: 1960-08-24
•
Granted: 1971-03-02
•
Expires: 1980-08-24
Abstract
Abstract POLYPHENYL ETHERS WHICH HAVE UTILITY AS LUBRICANTS, HYDRAULIC FLUIDS AND HEAT TRANSFER AGENTS AND PROCESS FOR THE PREPARATION OF SAID POLYPHENYL ETHERS.
Inventors
- 👤 Gordon P Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:06
CPC Classifications
C; C10; C10M; C10M3/00; C09; C09K; C09K5/00; C09K5/08; C10M2207/00; C10M2207/04; C10M2209/00; C10M2209/02; C10M2209/10; C10N; C10N2030/00; C10N2030/08; C10N2030/32; C10N2040/00; C10N2040/08; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |