US2616899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorinated epoxy compounds
Assignee: Uniroyal Inc
•
Filing: 1951-03-26
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Granted: 1952-11-04
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Expires: 1971-03-26
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Ladd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:54
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/08; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A METHOD WHICH COMPRISES HEATING 3,4EPOXY-1-BUTENE WITH HEXACHLOROCYCLOPENTADIENE FOR A PERIOD OF TIME IN THE RANGE FROM ABOUT 1 TO ABOUT 20 HOURS, TO EFFECT REACTION BETWEEN SAID CHEMICALS, SUBSEQUENTLY COOLING THE REACTION MIXTURE AND RECOVERING A CRYSTALLINE SOLID MELTING IN THE RANGE OF FROM ABOUT 87* C. TO ABOUT 89* C.
Claim 2
Independent Claim
52 words
A METHOD WHICH COMPRISES HEATING 3,4EPOXY-1-BUTENE WITH HEXACHLOROCYCLOPENTADIENE FOR A PERIOD OF TIME IN THE RANGE FROM ABOUT 1 TO ABOUT 20 HOURS, TO EFFECT REACTION BETWEEN SAID CHEMICALS, SUBSEQUENTLY COOLING THE REACTION MIXTURE AND RECOVERING A CRYSTALLINE SOLID MELTING IN THE RANGE OF FROM ABOUT 87* C. TO ABOUT 89* C.
References Cited (Backward Citations)
GB614931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |