US3229441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of insulating a wall structure
Assignee: Pullman Inc
•
Filing: 1963-01-16
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Granted: 1966-01-18
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Expires: 1983-01-16
Abstract
No abstract record available.
Inventors
- 👤 George R Heffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:42
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/04; B62D33/048
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
198 words
THE METHOD OF MAKING AN INSULATED WALL COMPRISING THE STEPS OF ERECTING A PLURALITY OF POSTS AT SPACED INTERVALS FROM ONE ANOTHER, ATTACHING A SHEET MATERIAL TO ONE SIDE OF SAID POSTS WITH THESE POSTS EXTENDING TRANSVERSELY OF THE SHEET MATERIAL, ATTACHING ELONGATED INSULATIVE SPACER STRIPS OF LOW THERMAL CONDUCTIVITY TO THE OTHER SIDE OF EACH POST AND TRANSVERSE TO THE SHEET MATERIAL, ATTACHING A SHEET OF INSULATIVE MATERIAL OF LOW THERMAL CONDUCTIVITY TRANSVERSELY TO SAID SPACER STRIPS THEREBY FORMING A SERIES OF ISOLATED COMPARTMENTS, BEGINNING AT ONE END OF SAID WALL SERIALLY POURING BATCHES OF A FOAMABLE LIQUID MATERIAL OF LOW THERMAL CONDUCTIVITY INTO THE LOWER PORTION OF RESPECTIVE COMPARTMENTS, ALLOWING JELLYING AND FOAMING OF THE FOAMABLE MATERIAL INTO A SOLID CONDITION AND THE FORMATION OF SUFFICIENT CELLULAR ELONGATION OF THE FOAMABLE MATERIAL IN THE DIRECTION OF THE MAJOR PLANE OF THE WALL FOR SUFFICIENT THERMAL INSULATION, EACH SAID BATCH CONSISTING OF ENOUGH MATERIAL TO FILL A PORTION OF EACH COMPARTMENT WITH FOAMED MATERIAL AND ALLOWING SETTING AND SOLIDIFYING OF THE FOAMED MATERIAL, REPEATING SAID POURING STEPS OVER THE PREVIOUSLY POURED FOAMABLE MATERIAL IN RESPECTIVE COMPARTMENTS SERIALLY UNTIL EACH SAID COMPARTMENT IS FILLED WITH THE FOAMABLE MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |