Patent US2722555A successfully refreshed from Google Patents.
US2722555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethers of anthracene-9, 10-dimethanol
Assignee: Uniroyal Inc
•
Filing: 1954-01-08
•
Granted: 1955-11-01
•
Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
- 👤 Roger W Amidon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/23; C07C41/00; C07C41/01; C07C41/16; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A DI-ETHER OF 9,10-ANTHRACENEDIMETHANOL SELECTED FROM THE CLASS CONSISTING OF THE DIALLYL ETHER OF 9,10ANTHRACENEDIMETHANOL AND THE DIPHENYL ETHER OF 9,10 ANTHRACENEDIMETHANOL.
Claim 2
Dependent Claim
22 words
A DI-ETHER OF 9,10-ANTHRACENEDIMETHANOL SELECTED FROM THE CLASS CONSISTING OF THE DIALLYL ETHER OF 9,10ANTHRACENEDIMETHANOL AND THE DIPHENYL ETHER OF 9,10 ANTHRACENEDIMETHANOL.
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) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |