US3434994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil extension of high solids latex
Assignee: Polysar Ltd
•
Filing: 1966-01-04
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Granted: 1969-03-25
•
Expires: 1986-01-04
Abstract
No abstract record available.
Inventors
- 👤 Hendrik Smit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:24
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08K; C08K5/00; C08K5/01; C08L; C08L21/00; C08L21/02; C08J2321/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |