US3106746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion head
Assignee: Individual
•
Filing: 1961-08-30
•
Granted: 1963-10-15
•
Expires: 1981-08-30
Abstract
No abstract record available.
Inventors
- 👤 Andrew V Sunday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:11
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/03; B29C48/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
CROSSOVERMEANS ADAPTED TO BE DISPOSED IN A CONFINED ELONGATED PATH OF FLOWING MATERIAL HAVING A CENTRAL AXIS, COMPRISING PLURAL PASSAGE MEANS DIRECTING THE FLOW OF MATERIAL IN SUCH MANNER THAT THE RADIALLY INWARDLY POSITIONED MATERIAL AT THE ENTRANCE OF SAID CROSSOVER MEANS MOVES THROUGH SAID CORSSOVER MEANS TO THE RADIALLY OUTWARD POSITION AT THE DISCHARGE END OF SAID CROSSOVER MEANS, SAID PASSAGE MEANS BEING CIRCUMFERENTIAL IN EXTENT AT EACH END OF SAID PATH, AND EACH SAID PASSAGE MEANS BEING INDEPENDENT OF THE OTHER.
Claim 2
Dependent Claim
83 words
CROSSOVERMEANS ADAPTED TO BE DISPOSED IN A CONFINED ELONGATED PATH OF FLOWING MATERIAL HAVING A CENTRAL AXIS, COMPRISING PLURAL PASSAGE MEANS DIRECTING THE FLOW OF MATERIAL IN SUCH MANNER THAT THE RADIALLY INWARDLY POSITIONED MATERIAL AT THE ENTRANCE OF SAID CROSSOVER MEANS MOVES THROUGH SAID CORSSOVER MEANS TO THE RADIALLY OUTWARD POSITION AT THE DISCHARGE END OF SAID CROSSOVER MEANS, SAID PASSAGE MEANS BEING CIRCUMFERENTIAL IN EXTENT AT EACH END OF SAID PATH, AND EACH SAID PASSAGE MEANS BEING INDEPENDENT OF THE OTHER.
References Cited (Backward Citations)
US2253160A
Cited
FR929239A
Cited
US2669750A
Cited
US2766483A
Cited
FR1181407A
Cited
FR1227579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |