US3629206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing of liquid polythiopolymercaptan polymers
Assignee: Eagle Picher Industries Inc
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Filing: 1969-07-16
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Granted: 1971-12-21
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Expires: 1989-07-16
Abstract
Abstract CURING OF LIQUID ORGANIC POLYTHIOPOLYMERCAPTAN POLYMERS WITH CURING SYSTEMS WHICH ARE CAPABLE OF AFFECTING RAPID CURES AT ROOM TEMPERATURES AND WHICH WILL PRODUCE WHITE OR LIGHT-COLORED ELASTOMERIC OR PLASTIC PRODUCTS AMENABLE TO TINTING OR COLORING. THE CURING SYSTEM CONSISTS ESSENTIALLY OF AN ALKYL THIURAM POLYSULFIDE AND AT LEAST ONE LEAD SALT SELECTED FROM THE GROUP CONSISTING OF A BASIC LEAD SALT, A NORMAL LEAD SALT AND MIXTURES THEREOF.
Inventors
- 👤 Harry B Stephenson
- 👤 William J Clapson
- 👤 Edwin L Wolkar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:24
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |