US3279334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of construction in permafrost regions
Assignee: Individual
•
Filing: 1962-01-18
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Granted: 1966-10-18
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Expires: 1982-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jack M Quartararo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:09
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/32; E02D27/35; E01; E01C; E01C3/00; E01C3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
A HARD SURFACED ROAD CONSTRUCTION ON FROZEN GROUND. COMPRISING A LAYER OF FLEXIBLE INSULATING MATERIAL DISPOSED ON THE FROZEN GROUND SURFACE ALONG THE ROADWAY TO FORM A FIRM FOUNDATION FOR SAID ROADWAY DURING THAWING PERIODS, SAID LAYER OF INSULATING MATERIAL BEING OF A PREDETERMINED THICKNESS RELATIVE TO THE KNOWN MEANS AMBIENT TEMPERATURE OF THE AIR DURING SAID THAWING PERIODS TO PREVENT A TEMPERATURE RISE IN SIAD FROZEN GROUND ABUTTING SAID LAYER FROM THE FROZEN TEMPERATURE TO A SURFACE THAWING TEMPERATURE DURING SAID THAWING PERIODS, SHEET PILING INSERTED INTO THE GROUND ON OPPOSITE SIDES OF THE ROADWAY, AND A HARD SURFACE DISPOSED BETWEEN SAID SHEET PILING AND ABOVE SAID INSULATING LAYER.
References Cited (Backward Citations)
CA517831A
Cited
US2024158A
Cited
GB460473A
Cited
US2044498A
Cited
US2183253A
Cited
GB787303A
Cited
US3110981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |