Patent US3073021A successfully refreshed from Google Patents.
US3073021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming modular frameless roof construction
Assignee: Individual
•
Filing: 1956-06-06
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Granted: 1963-01-15
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Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Maurice W Goodwill
- 👤 Leslie W Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:04
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/06; B21D5/08; E; E04; E04B; E04B7/00; E04B7/08; E04C; E04C2/00; E04C2/30; E04C2/32; E04D; E04D3/00; E04D3/24; E04D3/30; E04D3/36; E04D3/366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
THE METHOD OF MANUFACTURING A SELF-SUPPORTING SECTION OF ROOF CONSISTING OF FORMING A SUBSTANTIALLY LONGITUDINALLY EXTENDING CHANNEL MEMBER WITH A SUBSTANTIALLY HORIZONTAL CENTRAL BOTTOM PORTION AND SUBSTANTIALLY UPWARDLY AND OUTWARDLY DISPOSED SIDE WALLS EXTENDING LONGITUDINALLY FROM THE OPPOSITE EDGES OF SAID BOTTOM PORTION, THEREAFTER SIMULTANEOUSLY APPLYING ROLLING PRESSURE IN OPPOSITE DIRECTIONS TO OPPOSITE SIDES OF BOTH OF SAID SIDE WALLS AT A LOCALIZED AREA THEREALONG AND AT A POINT ALONG EACH OF SAID SIDE WALLS IN ALIGNMENT WITH EACH OTHER, APPLYING SAID PRESSURE IN A DIRECTION EXTENDING VERTICALLY OF SAID LONGITUDINALLY EXTENDING SIDE WALLS, AND APPLYING SAID PRESSURE PROGRESSIVELY AND CONTINUOUSLY FROM ONE END OF SAID CHANNEL MEMBER TO THE OPPOSITE END THEREOF, WITH A GREATER PRESSURE BEING APPLIED AT THE OUTER END OF SAID SIDE WALLS AND PROGRESSIVELY DECREASING IN A DIRECTION TOWARD THE LOWER ENDS OF SAID SIDE WALLS TO CAUSE DIFFERENTIAL THINNING OF SAID SIDE WALLS WITH THE THINNER PORTION BEING ADJACENT THE OUTER ENDS OF SAID SIDE WALLS AND TO INDUCE CONVEX CURVATURE OF SAID BOTTOM PORTION OF THE CHANNEL MEMBER.
Claim 2
Independent Claim
175 words
THE METHOD OF MANUFACTURING A SELF-SUPPORTING SECTION OF ROOF CONSISTING OF FORMING A SUBSTANTIALLY LONGITUDINALLY EXTENDING CHANNEL MEMBER WITH A SUBSTANTIALLY HORIZONTAL CENTRAL BOTTOM PORTION AND SUBSTANTIALLY UPWARDLY AND OUTWARDLY DISPOSED SIDE WALLS EXTENDING LONGITUDINALLY FROM THE OPPOSITE EDGES OF SAID BOTTOM PORTION, THEREAFTER SIMULTANEOUSLY APPLYING ROLLING PRESSURE IN OPPOSITE DIRECTIONS TO OPPOSITE SIDES OF BOTH OF SAID SIDE WALLS AT A LOCALIZED AREA THEREALONG AND AT A POINT ALONG EACH OF SAID SIDE WALLS IN ALIGNMENT WITH EACH OTHER, APPLYING SAID PRESSURE IN A DIRECTION EXTENDING VERTICALLY OF SAID LONGITUDINALLY EXTENDING SIDE WALLS, AND APPLYING SAID PRESSURE PROGRESSIVELY AND CONTINUOUSLY FROM ONE END OF SAID CHANNEL MEMBER TO THE OPPOSITE END THEREOF, WITH A GREATER PRESSURE BEING APPLIED AT THE OUTER END OF SAID SIDE WALLS AND PROGRESSIVELY DECREASING IN A DIRECTION TOWARD THE LOWER ENDS OF SAID SIDE WALLS TO CAUSE DIFFERENTIAL THINNING OF SAID SIDE WALLS WITH THE THINNER PORTION BEING ADJACENT THE OUTER ENDS OF SAID SIDE WALLS AND TO INDUCE CONVEX CURVATURE OF SAID BOTTOM PORTION OF THE CHANNEL MEMBER.
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |