Patent US3150212A successfully refreshed from Google Patents.
US3150212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming hemispherical lead pellets
Assignee: ChampionX LLC
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Filing: 1961-06-29
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Granted: 1964-09-22
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jacklin Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR PREPARING SMOOTH AND HEMISPHERICALLYSHAPED LEAD PELLETS WHICH COMPRISES DRIPPING MOLTEN LEAD FROM A DISPENSING MEANS ONTO A MOVING METAL SURFACE ARRANGED BENEATH SAID DISPENSING MEANS, THE DISTANCE BETWEEN THE EXIT OPENING OF SAID DISPENSING MEANS AND SAID SURFACE BEING FROM ABOUT 1/4" TO ABOUT 5/8", THE TEMPERATURE OF SAID MOVING SURFACE BEING MAINTAINED AT FROM ABOUT 35*F. TO ABOUT 150*F.
Claim 2
Dependent Claim
63 words
A PROCESS FOR PREPARING SMOOTH AND HEMISPHERICALLYSHAPED LEAD PELLETS WHICH COMPRISES DRIPPING MOLTEN LEAD FROM A DISPENSING MEANS ONTO A MOVING METAL SURFACE ARRANGED BENEATH SAID DISPENSING MEANS, THE DISTANCE BETWEEN THE EXIT OPENING OF SAID DISPENSING MEANS AND SAID SURFACE BEING FROM ABOUT 1/4" TO ABOUT 5/8", THE TEMPERATURE OF SAID MOVING SURFACE BEING MAINTAINED AT FROM ABOUT 35*F. TO ABOUT 150*F.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |