US2544746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of chloroprene polymers
Assignee: EIDP Inc
•
Filing: 1949-07-27
•
Granted: 1951-03-13
•
Expires: 1969-07-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
AN UNVULCANIZED CHLOROPRENE POLYMER WHICH CAN BE RAPIDLY CURED AT ORDINARY VULCANIZING TEMPERATURES YET DOES NOT EXHIBIT UNDERSIBALE SCORCHY PROPERTIES AT ORDINARY TEMPERATURES, CONTAINING FROM 0.05% TO 10% OF THE WEIGHT OF THE POLYMER OF A CYCLIC THIOUREA OF THE FORMULA:
Claim 2
Dependent Claim
41 words
AN UNVULCANIZED CHLOROPRENE POLYMER WHICH CAN BE RAPIDLY CURED AT ORDINARY VULCANIZING TEMPERATURES YET DOES NOT EXHIBIT UNDERSIBALE SCORCHY PROPERTIES AT ORDINARY TEMPERATURES, CONTAINING FROM 0.05% TO 10% OF THE WEIGHT OF THE POLYMER OF A CYCLIC THIOUREA OF THE FORMULA:
References Cited (Backward Citations)
US2380618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |