US2578600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation device
Assignee: Individual
•
Filing: 1949-01-04
•
Granted: 1951-12-11
•
Expires: 1969-01-04
Abstract
No abstract record available.
Inventors
- 👤 Rose Jay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:26
CPC Classifications
F; F16; F16L; F16L59/00; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; F22; F22B; F22B37/00; F22B37/02; F22B37/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1965636A
Cited
US2050663A
Cited
US2175630A
Cited
US2172048A
Cited
US2239394A
Cited
US2148281A
Cited
US2220999A
Cited
US2310442A
Cited
US2474363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |