Patent US3091279A successfully refreshed from Google Patents.
US3091279A
Expired / Lapsed
US
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Method and apparatus for forming conically shaped articles
Assignee: Lockheed Martin Corp
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Filing: 1960-05-04
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Granted: 1963-05-28
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Expires: 1980-05-04
Abstract
No abstract record available.
Inventors
- 👤 Robert A O'neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:22
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/14; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/16; B21C37/18; B21C37/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD OF FORMING A CONCIALLY SHAPED ARTICLE FROM FLAT SHEET MATERIAL WHICH COMPRISES THE STEPS OF INSERTING AT LEAST A PORTION OF A BLANK SHEET BETWEEN THE FORMING ROLLS OF A BENDING MACHINE, ROTATABLY AND PIVOTALLY SECURING SAID SHEET AT AN ANCHOR POINT WITHOUT SAID ROLLS, AND PASSING SAID SHEET BETWEEN SAID ROLLS AS IT PIVOTALLY ROTATES ABOUT SAID POINT.
Claim 2
Independent Claim
61 words
THE METHOD OF FORMING A CONCIALLY SHAPED ARTICLE FROM FLAT SHEET MATERIAL WHICH COMPRISES THE STEPS OF INSERTING AT LEAST A PORTION OF A BLANK SHEET BETWEEN THE FORMING ROLLS OF A BENDING MACHINE, ROTATABLY AND PIVOTALLY SECURING SAID SHEET AT AN ANCHOR POINT WITHOUT SAID ROLLS, AND PASSING SAID SHEET BETWEEN SAID ROLLS AS IT PIVOTALLY ROTATES ABOUT SAID POINT.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |