US3291882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing thin-walled hollow polylactam articles
Assignee: Polymer Corp
•
Filing: 1963-11-21
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Granted: 1966-12-13
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Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert E Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:24
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/12; B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C41/00; B29C41/003; B29C41/006; B29C71/00; B29C71/0081; C08K; C08K5/00; C08K5/04; C08K5/07; B29K; B29K2077/00; C08L2314/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2789933A
Cited
US2751628A
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US3017391A
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US2975071A
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US3046177A
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US2990601A
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US3121768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |