US3343250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple tube forming method
Assignee: Douglas Aircraft Co Inc
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Filing: 1964-04-22
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Granted: 1967-09-26
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Charles W Berto
- 👤 Richard L Goforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:32
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/18; B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/151; B21D; B21D9/00; B21D9/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49391; Y10T29/4981; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF SIMULTANEOUSLY BENDING A PIPELINE AND SHROUD ASSEMBLY COMPRISING THE STEPS OF: ATTACHING SPACERS TO A SUBSTANTIALLY STRAIGHT LENGTH OF SAID PIPELINE; ENCOMPASSING SAID SPACERS AND SAID PIPELINE WITH SAID SHROUD IN SPACED RELATION FORMING A VOID THEREBETWEEN; FILLING SAID VOID WITH A LIQUID, SOLIDIFIABLE SUBSTANCE; ALLOWING SAID SUBSTANCE TO SOLIDIFY; AND SIMULTANEOUSLY BENDING SAID OUTER SHROUD AND SAID PIPELINE INTO A PREDETERMINED SHAPE.
Claim 2
Independent Claim
66 words
A METHOD OF SIMULTANEOUSLY BENDING A PIPELINE AND SHROUD ASSEMBLY COMPRISING THE STEPS OF: ATTACHING SPACERS TO A SUBSTANTIALLY STRAIGHT LENGTH OF SAID PIPELINE; ENCOMPASSING SAID SPACERS AND SAID PIPELINE WITH SAID SHROUD IN SPACED RELATION FORMING A VOID THEREBETWEEN; FILLING SAID VOID WITH A LIQUID, SOLIDIFIABLE SUBSTANCE; ALLOWING SAID SUBSTANCE TO SOLIDIFY; AND SIMULTANEOUSLY BENDING SAID OUTER SHROUD AND SAID PIPELINE INTO A PREDETERMINED SHAPE.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |