US3350346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stress cracking inhibitor
Assignee: ConocoPhillips Co
•
Filing: 1965-05-25
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Granted: 1967-10-31
•
Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Orwin G Maxson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A COMPOSITION COMPRISING A THERMOPLASTIC POLYMER DERIVED FROM MONOMERS OF WHICH THE MAJOR PROPORTION BY WEIGHT IS ETHYLENE AND, HOMOGENEOUSLY BLENDED THEREIN, A STRESS CRACKLING INHIBITING AMOUNT OF AN ALKARYL SULFONATE METAL SALT WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM, CALCIUM, MAGNESIUM, ZINC, AND ALUMINUM.
Claim 2
Dependent Claim
51 words
A COMPOSITION COMPRISING A THERMOPLASTIC POLYMER DERIVED FROM MONOMERS OF WHICH THE MAJOR PROPORTION BY WEIGHT IS ETHYLENE AND, HOMOGENEOUSLY BLENDED THEREIN, A STRESS CRACKLING INHIBITING AMOUNT OF AN ALKARYL SULFONATE METAL SALT WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM, CALCIUM, MAGNESIUM, ZINC, AND ALUMINUM.
References Cited (Backward Citations)
US3146216A
Cited
US3067151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |