US2789107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber stabilizers
Assignee: Primerica Inc
•
Filing: 1954-01-29
•
Granted: 1957-04-16
•
Expires: 1974-01-29
Abstract
No abstract record available.
Inventors
- 👤 Elliott L Weinberg
- 👤 Louis A Tomka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A RUBBER COMPOSITION COMPRISING AS A BASIC INGREDIENT A RUBBERY POLYMER SELECTED FROM THE CLASS CONSISTING OF NATURAL RUBBER, COPLYMERS OF 1,3 BUTADIENE AND STYRENE, AND COPOLYMERS OF 1,3 BUTADIENE AND ACRYLONITRILE, AND CONTAINING A STABILIZING AMOUNTS OF A HY DROCARBONTIN CARBOXYLATE.
Claim 2
Dependent Claim
42 words
A RUBBER COMPOSITION COMPRISING AS A BASIC INGREDIENT A RUBBERY POLYMER SELECTED FROM THE CLASS CONSISTING OF NATURAL RUBBER, COPLYMERS OF 1,3 BUTADIENE AND STYRENE, AND COPOLYMERS OF 1,3 BUTADIENE AND ACRYLONITRILE, AND CONTAINING A STABILIZING AMOUNTS OF A HY DROCARBONTIN CARBOXYLATE.
References Cited (Backward Citations)
US2307092A
Cited
US2648650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |