US2613166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulation
Assignee: Individual
•
Filing: 1949-03-11
•
Granted: 1952-10-07
•
Expires: 1969-03-11
Abstract
No abstract record available.
Inventors
- 👤 George E Gronemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:21
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/12; F16L59/06; F16L59/14; F16L59/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A DURABLE AND READILY REMOVABLE AND REPLEACEABLE INSULATING STRUCTURE COMPRISING SELFCONTAINED INSULATING UNITS, EACH UNIT CONSISTING OF ONE OR MORE LAYERS OF RESILIENT HEAT REFLECTIVE METAL INSULATING SHEETS, MEANS COMPRISING A SPACER RING FORMED OF LOW HEAT CONDUCTING MATERIAL HAVING ANNULAR GROOVES TO SEPARATE AND RECEIVE THE ENDS OF THE INNER INSULATING SHEETS TO FORM ISOLATED AIR SPACES, WHEREBY SAID SHEETS ARE CAPABLE OF FREELY EXPANDING AND CONTRACTING
Claim 2
Dependent Claim
68 words
A DURABLE AND READILY REMOVABLE AND REPLEACEABLE INSULATING STRUCTURE COMPRISING SELFCONTAINED INSULATING UNITS, EACH UNIT CONSISTING OF ONE OR MORE LAYERS OF RESILIENT HEAT REFLECTIVE METAL INSULATING SHEETS, MEANS COMPRISING A SPACER RING FORMED OF LOW HEAT CONDUCTING MATERIAL HAVING ANNULAR GROOVES TO SEPARATE AND RECEIVE THE ENDS OF THE INNER INSULATING SHEETS TO FORM ISOLATED AIR SPACES, WHEREBY SAID SHEETS ARE CAPABLE OF FREELY EXPANDING AND CONTRACTING
References Cited (Backward Citations)
US1762276A
Cited
US798649A
Cited
US1060328A
Cited
US1890418A
Cited
US2053252A
Cited
US1964795A
Cited
US2078606A
Cited
US2142542A
Cited
US2107588A
Cited
US2324181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |