US3485775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride resin processing aid imparting improved heat distortion characteristics
Assignee: Rohm and Haas Co
•
Filing: 1968-04-22
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Granted: 1969-12-23
•
Expires: 1988-04-22
Abstract
No abstract record available.
Inventors
- 👤 Harry J Cenci
- 👤 Marvin J Hurwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:23
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/04; C08L33/06; C08L33/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3084065A
Cited
US3267179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |