US2955686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating structure and method of producing same
Assignee: BLOMELEY ENGINEERING Corp
•
Filing: 1957-07-23
•
Granted: 1960-10-11
•
Expires: 1977-07-23
Abstract
No abstract record available.
Inventors
- 👤 Blomeley Ralph
- 👤 Harold H Blomeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:03
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/12; B; B65; B65D; B65D90/00; B65D90/02; B65D90/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US778679A
Cited
US1063514A
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US1558217A
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US1675354A
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US1674842A
Cited
US2323297A
Cited
US2746578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |