US3221068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated di-p-xylylenes
Assignee: Union Carbide Corp
•
Filing: 1962-03-01
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Granted: 1965-11-30
•
Expires: 1982-03-01
Abstract
No abstract record available.
Inventors
- 👤 William F Gorham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:57
CPC Classifications
C; C07; C07C; C07C25/00; C07C25/18; C07C25/22; C07C17/00; C07C17/093; C07C17/10; C07C17/12; C07C23/00; C07C23/18; C07C23/20; C07C23/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A HALOGENATED CYCLIC DI-PIXYLYLENE HAVING THE STRUCTURE
Claim 2
Dependent Claim
7 words
A HALOGENATED CYCLIC DI-PIXYLYLENE HAVING THE STRUCTURE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |