US3452125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for blow molding thermoplastic material
Assignee: WR Grace and Co
•
Filing: 1967-03-03
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Granted: 1969-06-24
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Expires: 1987-03-03
Abstract
No abstract record available.
Inventors
- 👤 Peter T Schurman
- 👤 Raymond C Confer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:59
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; B29C49/0411; B29C49/04112; B29C48/00; B29C48/03; B29C48/09; B29C48/25; B29C48/30; B29C48/32; B29C48/325; B29C48/34; B29C48/36; B29C48/50; B29C48/695; B29C48/70; B29C49/0031; B29C48/001; B29C48/0017; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2687157A
Cited
US2991500A
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US3148103A
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US3004285A
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US3167104A
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US3242245A
Cited
FR1349717A
Cited
US3359602A
Cited
US3334164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |