US3264253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer compositions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-12-28
•
Granted: 1966-08-02
•
Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 William John G Mcculloch
- 👤 Walter E Heumann
- 👤 Philip L Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:50
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/34; C08K3/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
A FLEXIBLE COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF POLYPROPYLENE HAVING A TENSILE STRENGTH OF AT LEAST 800 P.S.I. AND A DENSITY BETWEEN 0.875 AND 0.885 AND ABOUT 25 TO 50 PARTS BY WEIGHT OF AN INERT FILLER SELECTED FROM THE GROUP CONSISTING OF CARBON BLACK AND SILICA.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |