US2724730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation of hexachlorocyclopentadiene
Assignee: Occidental Chemical Corp
•
Filing: 1947-06-26
•
Granted: 1955-11-22
•
Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Arnold N Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:28
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
THE ART OF REACTING HEXACHLOROCYCLOPENTADIENE WITH ITSELF IN THE PRESENCE OF BETWEEN ABOUT 0.01 AND ABOUT 1.0 MOLE OF ALUMINUM CHLORIDE PER MOLE OF HEXACHLOROCYCLOPENTADIENE AND AT A TEMPERATURE BETWEEN 40 DEGREES CENTIGRADE AND THE REFLUX TEMPERATURE OF THE REACTION MIXTURE.
Claim 2
Dependent Claim
41 words
THE ART OF REACTING HEXACHLOROCYCLOPENTADIENE WITH ITSELF IN THE PRESENCE OF BETWEEN ABOUT 0.01 AND ABOUT 1.0 MOLE OF ALUMINUM CHLORIDE PER MOLE OF HEXACHLOROCYCLOPENTADIENE AND AT A TEMPERATURE BETWEEN 40 DEGREES CENTIGRADE AND THE REFLUX TEMPERATURE OF THE REACTION MIXTURE.
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) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |