Patent US3281387A successfully refreshed from Google Patents.
US3281387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber chemicals
Assignee: Uniroyal Inc
•
Filing: 1961-10-18
•
Granted: 1966-10-25
•
Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Paul R Wood
- 👤 Joseph P Flannery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K9/00; C08K9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A COMPOSITION COMPRISING A DIENE RUBBER AND A POWDERED RUBBER CHEMICAL SELECTED FROM THE GROUP CONSISTING OF BENZOTHIAZLDISULFIDE, P-QUINONEDOXIME AND DIBENZOL-P-QUINEDIOXIME HAVING INTIMATELY ADMIXED THEREWITH 0.5% TO 5% BY WEIGHT (BASED ON THE WEIGHT OF SAID RUBBER CHEMICAL) OF A POLYVALENT METAL NAPHTHENATE SELECTED FROM THE GROUP CONSISTING OF ZINC NAPHTHENATE AND CALCIUM NAPHTHENATE.
Claim 2
Dependent Claim
54 words
A COMPOSITION COMPRISING A DIENE RUBBER AND A POWDERED RUBBER CHEMICAL SELECTED FROM THE GROUP CONSISTING OF BENZOTHIAZLDISULFIDE, P-QUINONEDOXIME AND DIBENZOL-P-QUINEDIOXIME HAVING INTIMATELY ADMIXED THEREWITH 0.5% TO 5% BY WEIGHT (BASED ON THE WEIGHT OF SAID RUBBER CHEMICAL) OF A POLYVALENT METAL NAPHTHENATE SELECTED FROM THE GROUP CONSISTING OF ZINC NAPHTHENATE AND CALCIUM NAPHTHENATE.
References Cited (Backward Citations)
US2489704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |