US3104608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer handling
Assignee: EIDP Inc
•
Filing: 1960-06-20
•
Granted: 1963-09-24
•
Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Iii Robert Clark Ribbans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:58
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE15630C
Cited
US205758A
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US631567A
Cited
US1350788A
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US2052909A
Cited
US2263343A
Cited
US2175275A
Cited
US2319611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |