US3530534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruder with ball and screw dispersing mechanism
Assignee: Somerset Technologies Inc
•
Filing: 1968-01-29
•
Granted: 1970-09-29
•
Expires: 1988-01-29
Abstract
No abstract record available.
Inventors
- 👤 Anthony W Pomper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:53
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/241; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/362; B29C48/363; B29C48/395; B29C48/50; B29C48/505; B29C48/53; B29C48/565; B29C48/67; B29C48/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB1053728A
Cited
US2754542A
Cited
US2785438A
Cited
US3043480A
Cited
DE1177808B
Cited
US3149377A
Cited
US3209408A
Cited
US3335461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |