US3459719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of low molecular weight vinyl chloride polymers
Assignee: Tenneco Polymers Inc
•
Filing: 1965-12-22
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Granted: 1969-08-05
•
Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Dean E Richardson
- 👤 Gordon G Harkreader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:48
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F271/00; Y; Y10; Y10S; Y10S526/00; Y10S526/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2886552A
Cited
US2890199A
Cited
US2862912A
Cited
US3035032A
Cited
US3053801A
Cited
GB932134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |