Patent US3536435A successfully refreshed from Google Patents.
US3536435A
Expired / Lapsed
US
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Plastic container and blow molding method
Assignee: WR Grace and Co
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Filing: 1969-02-24
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Granted: 1970-10-27
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Expires: 1989-02-24
Abstract
No abstract record available.
Inventors
- 👤 Peter T Schurman
- 👤 Raymond C Confer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/14; B65D43/16; B65D43/162; B29; B29C; B29C49/00; B29C49/0031; B65D2251/00; B65D2251/10; B65D2251/1016; B65D2251/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3441071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |