US3381479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a line in a gallery
Assignee: QUADRIO CURZIO SpA
•
Filing: 1964-10-30
•
Granted: 1968-05-07
•
Expires: 1984-10-30
Abstract
No abstract record available.
Inventors
- 👤 Curzio Pericle Quadrio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:00
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/04; E21D11/10; E21D11/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF FORMING A GALLERY COMPRISING EXCAVATING THE GALLERY IN SUCCESSIVE INCREMENTAL LENGTHS OF LESS THAN 3 METERS, EACH EXCAVATION BEING EFFECTED OVER THE ENTIRE CROSS-SECTION OF THE GALLERY ALL AT ONCE, INSTALLING AN ASSEMBLED RETICULAR STRUCTURE OF ARCH SHAPE AND TRUSS FORM IN EACH INCREMENTAL LENGTH OF THE GALLERY AFTER ITS FORMATION, THE RETICULAR STRUCTURE HAVING A THICKNESS GREATER THAN 15 CENTIMETERS AND A SURFACE EXTENT CORRESPONDING TO THAT OF THE WALLS OF CEILING OF THE GALLERY AND SUPPORTED ON THE FLOOR THERETO, AND INJECTING A MASS OF SETTABLE COMPOUND ONTO THE WALLS AND CEILING OF THE GALLERY AFTER THE INSTALLATION OF EACH RETICULAR STRUCTURE SUCH THAT THE MASS COMPLETELY ENCASES THE STRUCTURE AND TOGETHER THEREWITH FORMS A REINFORCED LINING FOR THE EXCAVATION, THE RETICULAR CONSTRUCTION OF
Claim 2
Independent Claim
129 words
A METHOD OF FORMING A GALLERY COMPRISING EXCAVATING THE GALLERY IN SUCCESSIVE INCREMENTAL LENGTHS OF LESS THAN 3 METERS, EACH EXCAVATION BEING EFFECTED OVER THE ENTIRE CROSS-SECTION OF THE GALLERY ALL AT ONCE, INSTALLING AN ASSEMBLED RETICULAR STRUCTURE OF ARCH SHAPE AND TRUSS FORM IN EACH INCREMENTAL LENGTH OF THE GALLERY AFTER ITS FORMATION, THE RETICULAR STRUCTURE HAVING A THICKNESS GREATER THAN 15 CENTIMETERS AND A SURFACE EXTENT CORRESPONDING TO THAT OF THE WALLS OF CEILING OF THE GALLERY AND SUPPORTED ON THE FLOOR THERETO, AND INJECTING A MASS OF SETTABLE COMPOUND ONTO THE WALLS AND CEILING OF THE GALLERY AFTER THE INSTALLATION OF EACH RETICULAR STRUCTURE SUCH THAT THE MASS COMPLETELY ENCASES THE STRUCTURE AND TOGETHER THEREWITH FORMS A REINFORCED LINING FOR THE EXCAVATION, THE RETICULAR CONSTRUCTION OF
References Cited (Backward Citations)
US317338A
Cited
FR1353578A
Cited
FR1355456A
Cited
US1474808A
Cited
US1876205A
Cited
DE633475C
Cited
GB511080A
Cited
GB946460A
Cited
US3224203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |