US3296991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner construction for metal cabinets
Assignee: GRAND SHEET METAL PRODUCTS CO
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Filing: 1964-05-13
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Granted: 1967-01-10
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Expires: 1984-05-13
Abstract
No abstract record available.
Inventors
- 👤 Rawson Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:27
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/74; F; F16; F16B; F16B12/00; F16B12/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD OF FORMING A MITER CORNER FOR A CABINET WHICH COMPRISES THE STEPS OF CUTTING A TRIANGULAR NOTCH IN ONE EDGE OF A BLANK OF SHEET METAL, BENDING SAID BLANK ALONG A PLURALITY OF LINES PARALLEL TO SAID EDGE TO PROVIDE A PLURALITY OF ANGULARLY DISPOSED SECTIONS WITH ANGLES OF DIFFERENT MAGNITUDES BETWEEN ADJACENT BEND LINES, THE BEND LINE MOST REMOTE FROM SAID NOTCHED EDGE OF SAID BLANK PASSING THROUGH THE APEX OF SAID TRIANGULAR NOTCH, CUTTING EACH SIDE OF SAID NOTCH AT AN ANGLE OF 45* TO THE FRONT AND BACK SURFACES OF THE BLANK THROUGH THE THICKNESS OF SAID BLANK, THE ANGLE OF 45* ON ONE SIDE OF SAID NOTCH BEING OPPOSITELY DIRECTED TO THE ANGLE OF 45* ON THE OP-
Claim 2
Independent Claim
124 words
A METHOD OF FORMING A MITER CORNER FOR A CABINET WHICH COMPRISES THE STEPS OF CUTTING A TRIANGULAR NOTCH IN ONE EDGE OF A BLANK OF SHEET METAL, BENDING SAID BLANK ALONG A PLURALITY OF LINES PARALLEL TO SAID EDGE TO PROVIDE A PLURALITY OF ANGULARLY DISPOSED SECTIONS WITH ANGLES OF DIFFERENT MAGNITUDES BETWEEN ADJACENT BEND LINES, THE BEND LINE MOST REMOTE FROM SAID NOTCHED EDGE OF SAID BLANK PASSING THROUGH THE APEX OF SAID TRIANGULAR NOTCH, CUTTING EACH SIDE OF SAID NOTCH AT AN ANGLE OF 45* TO THE FRONT AND BACK SURFACES OF THE BLANK THROUGH THE THICKNESS OF SAID BLANK, THE ANGLE OF 45* ON ONE SIDE OF SAID NOTCH BEING OPPOSITELY DIRECTED TO THE ANGLE OF 45* ON THE OP-
References Cited (Backward Citations)
US319305A
Cited
US1695091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |