US3149598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing conical structures
Assignee: REES BLOW PIPE Manufacturing CO
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Filing: 1961-11-07
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Granted: 1964-09-22
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Expires: 1981-11-07
Abstract
No abstract record available.
Inventors
- 👤 Rees Frances Elizabeth
- 👤 Charles W Kraut
- 👤 Sulley William Kennet Eastwood
- 👤 Eaton George Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:05
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/16; B21C37/18; B21C37/185; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49796; Y10T29/49826; Y10T29/49908; Y10T29/49936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
THE METHOD OF PRODUCING CONICAL STRUCTURES IN COURSES WHICH COMPRISES SELECTING RECTANGULAR SHEETS OF A DESIRED LENGTH AND WIDTH, CUTTING THE SHEETS FOR EACH COURSE ON A VERTICAL DIAGONAL INTO TWO PIECES, REVERSING ONE PIECE OF EACH SHEET AND SECURING IT TO THE OTHER PIECE OF SAID SHEET TO FORM A TRAPEZOIDAL PANEL, THE ANGLE OF CUT FROM THE VERTICAL OF THE SHEET OF EACH COURSE BEING INCREASED OVER THAT OF THE PREVIOUS COURSE OF LARGER DIAMETER, THE NUMBER OF PANELS IN EACH COURSE BEING LESS THAN THAT OF THE PREVIOUS COURSE OF LARGER DIAMETER, ALL OF THE PANELS FOR THE COURSES BEING OF THE SAME MEAN WIDTH, JOINING THE NON-PARALLEL EDGES OF THE PANELS OF THE FIRST COURSE TO PRODUCE A FRUSTUM, JOINING THE NON-PARALLEL EDGES OF THE PANELS OF EACH SUCCESSIVE COURSE TO PRODUCE THE COURSE, AND SECURING THE BOTTOM ENDS OF EACH COURSE TO THE TOP ENDS OF THE COURSE IMMEDIATELY BELOW.
Claim 2
Independent Claim
155 words
THE METHOD OF PRODUCING CONICAL STRUCTURES IN COURSES WHICH COMPRISES SELECTING RECTANGULAR SHEETS OF A DESIRED LENGTH AND WIDTH, CUTTING THE SHEETS FOR EACH COURSE ON A VERTICAL DIAGONAL INTO TWO PIECES, REVERSING ONE PIECE OF EACH SHEET AND SECURING IT TO THE OTHER PIECE OF SAID SHEET TO FORM A TRAPEZOIDAL PANEL, THE ANGLE OF CUT FROM THE VERTICAL OF THE SHEET OF EACH COURSE BEING INCREASED OVER THAT OF THE PREVIOUS COURSE OF LARGER DIAMETER, THE NUMBER OF PANELS IN EACH COURSE BEING LESS THAN THAT OF THE PREVIOUS COURSE OF LARGER DIAMETER, ALL OF THE PANELS FOR THE COURSES BEING OF THE SAME MEAN WIDTH, JOINING THE NON-PARALLEL EDGES OF THE PANELS OF THE FIRST COURSE TO PRODUCE A FRUSTUM, JOINING THE NON-PARALLEL EDGES OF THE PANELS OF EACH SUCCESSIVE COURSE TO PRODUCE THE COURSE, AND SECURING THE BOTTOM ENDS OF EACH COURSE TO THE TOP ENDS OF THE COURSE IMMEDIATELY BELOW.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |