US3435103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming solid articles from expandable polymer
Assignee: Standard Oil Co
•
Filing: 1965-03-01
•
Granted: 1969-03-25
•
Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Medhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:40
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/461; C; C08; C08J; C08J9/00; C08J9/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA682464A
Cited
US2740157A
Cited
US2728950A
Cited
US2945261A
Cited
US2917806A
Cited
US3012282A
Cited
US3033806A
Cited
US3066382A
Cited
US3147321A
Cited
GB948300A
Cited
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 |