Patent US3265797A successfully refreshed from Google Patents.
US3265797A
Expired / Lapsed
US
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Method of injection molding solid heavy section
Assignee: WR Grace and Co
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Filing: 1962-08-30
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Granted: 1966-08-09
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Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Spaak Albert
- 👤 Clifford L Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:36
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/57; B29C45/572; B29C45/0001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2355613A
Cited
US2372630A
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US2689376A
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US2781547A
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US3044118A
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US3009206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |