US2851216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device adapted for respiration cooling and process of making same
Assignee: Schwarzkopf Technologies Corp
•
Filing: 1954-01-13
•
Granted: 1958-09-09
•
Expires: 1974-01-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Scanlan
- 👤 Alter Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:22
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/002; B23; B23P; B23P15/00; B23P15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2390160A
Cited
GB619634A
Cited
US2554343A
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US2633628A
Cited
US2665881A
Cited
US2672415A
Cited
US2648520A
Cited
GB696715A
Cited
US2714245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |