US3156013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator unit for injection cylinder
Assignee: Portage Machine Co
•
Filing: 1961-06-26
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Granted: 1964-11-10
•
Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Leon E Elphee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/58; B29C45/581; B29C45/26; B29C45/27; B29C45/30; B29C2045/306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2462308A
Cited
US2482243A
Cited
US2724146A
Cited
US2669750A
Cited
FR1237535A
Cited
GB884465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |