US3459089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting block compositions containing trans-1,4 polymers of isoprene
Assignee: Polysar Ltd
•
Filing: 1967-01-23
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Granted: 1969-08-05
•
Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Roy Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:04
CPC Classifications
C; C08; C08L; C08L9/00; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10; C08L9/06; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9309
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA696901A
Cited
CA727493A
Cited
US2575378A
Cited
US2611757A
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US3250733A
Cited
US3326824A
Cited
US3213160A
Cited
US3362937A
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 |