Patent US2737224A successfully refreshed from Google Patents.
US2737224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming sheet metal
Assignee: Boeing Co
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Filing: 1951-12-10
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Granted: 1956-03-06
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Expires: 1971-12-10
Abstract
No abstract record available.
Inventors
- 👤 Everett E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:12
CPC Classifications
B; B21; B21D; B21D25/00; B21D25/02; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
APPARATUS FOR SEVERAL FORMING MAGNESIUM ALLOY SHEET STOCK COMPRISING: A FIXED NEGATIVE FORMING DIE; A PAIR OF SHEET GRIPPING JAWS, ONE NEAR EACH END OF SAID DIE, AND MOVABLE LATERALLY AND LONGITUDINALLY WITH RELATION TO THE DIE FOR WRAPPING THE SHEET INTO CONTACT THEREWITH; MEANS FOR EVACUATING AIR FROM THE DIE CAVITY; A CARRIAGE MOVABLE TOWARD AND AWAY FROM THE DIE FORMING SURFACE; A RADIANT HEATING UNIT MOUNTED ON AND MOVABLE WITH SAID CARRIAGE, SAID UNIT INCLUDING A PLURALITY OF ARTICULATED RADIANT HEATING PANELS MOVABLE WITH RELATION TO EACH OTHER TO VARY THEIR SPACING FROM THE DIE FORMING SURFACE; MEANS FOR ENERGIZING SAID PANELS TO PROVIDE RADIANT HEAT; HEAT CONDUCTING MEANS CONNECTIBLE TO A PLURALITY OF SPACED
Claim 2
Dependent Claim
117 words
APPARATUS FOR SEVERAL FORMING MAGNESIUM ALLOY SHEET STOCK COMPRISING: A FIXED NEGATIVE FORMING DIE; A PAIR OF SHEET GRIPPING JAWS, ONE NEAR EACH END OF SAID DIE, AND MOVABLE LATERALLY AND LONGITUDINALLY WITH RELATION TO THE DIE FOR WRAPPING THE SHEET INTO CONTACT THEREWITH; MEANS FOR EVACUATING AIR FROM THE DIE CAVITY; A CARRIAGE MOVABLE TOWARD AND AWAY FROM THE DIE FORMING SURFACE; A RADIANT HEATING UNIT MOUNTED ON AND MOVABLE WITH SAID CARRIAGE, SAID UNIT INCLUDING A PLURALITY OF ARTICULATED RADIANT HEATING PANELS MOVABLE WITH RELATION TO EACH OTHER TO VARY THEIR SPACING FROM THE DIE FORMING SURFACE; MEANS FOR ENERGIZING SAID PANELS TO PROVIDE RADIANT HEAT; HEAT CONDUCTING MEANS CONNECTIBLE TO A PLURALITY OF SPACED
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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |