US3077031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming sheet metal panels
Assignee: Individual
•
Filing: 1960-05-10
•
Granted: 1963-02-12
•
Expires: 1980-05-10
Abstract
No abstract record available.
Inventors
- 👤 Howard A Fromson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:05
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/021; B21D26/025; B21C; B21C37/00; B21C37/06; B21C37/14; B21D15/00; B21D15/04; B21D15/10; B21D26/053; B21D26/059; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF ERECTING AND FORMING A REINFORCED PRESTRESSED PANEL STRUCTURE COMPOSED OF FRAME MEMBERS FIXED IN LATERALLY SPACED RELATION TO EACH OTHER AND A SHEET METAL PANEL EXTENDING BETWEEN SAID FRAME MEMBERS AND HAVING ITS SIDE EDGES RESPECTIVELY PERMANENTLY SECURED TO SAID FRAME MEMBERS; COMPRISING THE STEPS OF PROVIDING FRAME MEMBERS IN FIXED LATERALLY SPACED RELATION TO EACH OTHER, PROVIDING A SHEET METAL PANEL HAVING ELONGATED INFLATABLE PORTIONS INTERMEDIATE THE SIDE EDGES THEREOF EXTENDING GENERALLY LENGTHWISE OF SAID PANEL, PERMANENTLY SECURING THE SIDE EDGES OF SAID PANEL TO SAID RESPECTIVE FRAME MEMBERS, AND THEREAFTER INFLATING SAID INFLATABLE PORTIONS UNTIL THE PANEL IS PLACED IN TENSION BETWEEN ITS SIDE EDGES WHILE MAINTAINING THE FIXED SPACED RELATIONSHIP OF SAID FRAME MEMBERS TO COMPLETE THE PRESTRESSED PANEL STRUCTURE REINFORCED BY THE INFLATED PORTIONS.
Claim 2
Independent Claim
131 words
THE METHOD OF ERECTING AND FORMING A REINFORCED PRESTRESSED PANEL STRUCTURE COMPOSED OF FRAME MEMBERS FIXED IN LATERALLY SPACED RELATION TO EACH OTHER AND A SHEET METAL PANEL EXTENDING BETWEEN SAID FRAME MEMBERS AND HAVING ITS SIDE EDGES RESPECTIVELY PERMANENTLY SECURED TO SAID FRAME MEMBERS; COMPRISING THE STEPS OF PROVIDING FRAME MEMBERS IN FIXED LATERALLY SPACED RELATION TO EACH OTHER, PROVIDING A SHEET METAL PANEL HAVING ELONGATED INFLATABLE PORTIONS INTERMEDIATE THE SIDE EDGES THEREOF EXTENDING GENERALLY LENGTHWISE OF SAID PANEL, PERMANENTLY SECURING THE SIDE EDGES OF SAID PANEL TO SAID RESPECTIVE FRAME MEMBERS, AND THEREAFTER INFLATING SAID INFLATABLE PORTIONS UNTIL THE PANEL IS PLACED IN TENSION BETWEEN ITS SIDE EDGES WHILE MAINTAINING THE FIXED SPACED RELATIONSHIP OF SAID FRAME MEMBERS TO COMPLETE THE PRESTRESSED PANEL STRUCTURE REINFORCED BY THE INFLATED PORTIONS.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |