Patent US3068526A successfully refreshed from Google Patents.
US3068526A
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Improved method of molding thinwalled articles from expandable thermoplastic beads
Assignee: Individual
•
Filing: 1958-10-10
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Granted: 1962-12-18
•
Expires: 1978-10-10
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Croan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:05
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C44/3415; B29C44/3426; Y; Y10; Y10S; Y10S264/00; Y10S264/10; Y10S264/72; Y10S425/00; Y10S425/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1846999A
Cited
US2454910A
Cited
US2498149A
Cited
US2672652A
Cited
US2678293A
Cited
US2688766A
Cited
US2606343A
Cited
US2787809A
Cited
US2736925A
Cited
US2827227A
Cited
US2891284A
Cited
US2862834A
Cited
GB792844A
Cited
US2915788A
Cited
US2765248A
Cited
US2954589A
Cited
US3015132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |