US2544381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling belt
Assignee: Individual
•
Filing: 1947-08-14
•
Granted: 1951-03-06
•
Expires: 1967-08-14
Abstract
No abstract record available.
Inventors
- 👤 Goldmerstein Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61F7/103; A61F2007/0001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US253952A
Cited
US347405A
Cited
US362109A
Cited
US681425A
Cited
US671423A
Cited
US1941173A
Cited
US2208855A
Cited
US2288745A
Cited
US2438643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |