US3047544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Difunctional polymers and methods for their preparation
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1958-10-20
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Granted: 1962-07-31
•
Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Norman R Byrd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:05
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08G18/696; C08C; C08C19/00; C08C19/30; C08F; C08F2/00; C08F2/38; C08F36/00; C08F36/02; C08F36/04; C08F8/00; C08F8/34; C08F8/42; C08G18/40; C08G18/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A METHOD FOR PREPARING POLYMERIC DIMERCAPTANS WHICH COMPRISES MIXING AT LEAST ONE MONOMER CONTAINING AT LEAST ONE H2C=C> GROUP WITH A XANTHOGEN DISULFIDE DEFINED BY THE FORMULA
Claim 2
Independent Claim
27 words
A METHOD FOR PREPARING POLYMERIC DIMERCAPTANS WHICH COMPRISES MIXING AT LEAST ONE MONOMER CONTAINING AT LEAST ONE H2C=C> GROUP WITH A XANTHOGEN DISULFIDE DEFINED BY THE FORMULA
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |