US3144069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal sheathed insulating blanket
Assignee: Johns Manville Corp
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Filing: 1961-01-18
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Granted: 1964-08-11
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Expires: 1981-01-18
Abstract
No abstract record available.
Inventors
- 👤 Donald P Rutter
- 👤 Anthony E Cimochowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:51
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/02; B21D22/027; B21D13/00; B21D13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
THE METHOD OF FORMING CORRUGATIONS IN A STRIP OF SHEET METAL HAVING FIRST AND SECOND WALLS EXTENDING ANGULARLY FROM EACH OTHER ON A LINE OF JUNCTION TO FORM A RELATIVELY CLEARLY DEMARKED OUTSIDE AND INSIDE CORNER THEREAT, SAID METHOD COMPRISING FORMING A CORRUGATION IN SAID FIRST WALL TRANSVERSELY THEREOF AND GENERALLY PERPENDICULAR TO SAID LINE OF JUNCTION, AND WITH THE CORRUGATION LAND EXTENDING INWARDLY FROM THE INSIDE FACE OF SAID FIRST WALL, AND WITH THE CORRUGATION GROOVE OPENING AT ONE END THROUGH SAID SECOND WALL AT SAID CORNER, AND SHAPING A PORTION OF SAID SECOND WALL TO FORM A SADDLE STRADLING AT LEAST A PORTION OF SAID CORRUGATION LAND ADJACENT SAID CORNER WHILE FORMING AT LEAST A PORTION OF THE LENGTH OF A CORRUGATION IN SAID SECOND WALL TRANSVERSELY THEREOF AND GENERALLY PERPENDICULAR TO SAID LINE OF JUNCTION, AND WITH ITS LAND EXTENDING INWARDLY FROM THE INSIDE FACE OF THE SECOND WALL AND TERMINATING AT ONE END IN A FOLD LINE OF JUNCTION WITH SAID SADDLE.
Claim 2
Independent Claim
166 words
THE METHOD OF FORMING CORRUGATIONS IN A STRIP OF SHEET METAL HAVING FIRST AND SECOND WALLS EXTENDING ANGULARLY FROM EACH OTHER ON A LINE OF JUNCTION TO FORM A RELATIVELY CLEARLY DEMARKED OUTSIDE AND INSIDE CORNER THEREAT, SAID METHOD COMPRISING FORMING A CORRUGATION IN SAID FIRST WALL TRANSVERSELY THEREOF AND GENERALLY PERPENDICULAR TO SAID LINE OF JUNCTION, AND WITH THE CORRUGATION LAND EXTENDING INWARDLY FROM THE INSIDE FACE OF SAID FIRST WALL, AND WITH THE CORRUGATION GROOVE OPENING AT ONE END THROUGH SAID SECOND WALL AT SAID CORNER, AND SHAPING A PORTION OF SAID SECOND WALL TO FORM A SADDLE STRADLING AT LEAST A PORTION OF SAID CORRUGATION LAND ADJACENT SAID CORNER WHILE FORMING AT LEAST A PORTION OF THE LENGTH OF A CORRUGATION IN SAID SECOND WALL TRANSVERSELY THEREOF AND GENERALLY PERPENDICULAR TO SAID LINE OF JUNCTION, AND WITH ITS LAND EXTENDING INWARDLY FROM THE INSIDE FACE OF THE SECOND WALL AND TERMINATING AT ONE END IN A FOLD LINE OF JUNCTION WITH SAID SADDLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |