US3345347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of elastomers by vulcanization of polyalkylene oxides
Assignee: Wyandotte Chemicals Corp
•
Filing: 1964-11-09
•
Granted: 1967-10-03
•
Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Elfers Gunther
- 👤 Sidney L Reegen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/06; A; A61; A61L; A61L27/00; A61L27/14; A61L27/18; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
AN ELASTOMER COMPRISING THE REACTION PRODUCT PRODUCED BY MIXING TOGETHER AND REACTING A POLYMER OF AN ALKYLENE OXIDE FREE OF OTHER THAN AROMATIC UNSATURATION HAVING TWO TO TWELVE CARBON ATOMS INCLUSIVE WITH A FREE RADICAL VULCANIZING AGENT AND A SULFUR-CONTAINING VULCANIZING AGENT.
Claim 2
Dependent Claim
42 words
AN ELASTOMER COMPRISING THE REACTION PRODUCT PRODUCED BY MIXING TOGETHER AND REACTING A POLYMER OF AN ALKYLENE OXIDE FREE OF OTHER THAN AROMATIC UNSATURATION HAVING TWO TO TWELVE CARBON ATOMS INCLUSIVE WITH A FREE RADICAL VULCANIZING AGENT AND A SULFUR-CONTAINING VULCANIZING AGENT.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |