Patent US3340337A successfully refreshed from Google Patents.
US3340337A
Expired / Lapsed
US
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Method and apparatus for forming a pipe fitting
Assignee: Individual
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Filing: 1964-02-24
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Granted: 1967-09-05
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:15
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/92; B28B21/98; B28B21/70; B28B21/74; F; F16; F16L; F16L41/00; F16L41/002; F16L49/00; Y; Y10; Y10S; Y10S425/00; Y10S425/218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR FORMING A TUBULAR EXTENSION ON A LENGTH OF MOLDABLE MATERIAL THAT INCLUDES, PROVIDING A FORMING ZONE DEFINED BY A RIGID CLOSED SURFACE, POSITIONING SAID LENGTH ADJACENT SAID FORMING ZONE, INTRODUCING A ROTATING MANDREL INTO SAID FORMING ZONE, SAID MANDREL PENETRATING SAID MATERIAL, AND ORBITING SAID ROTATING MANDREL AROUND SAID SURFACE TO COMPRESS THE MATERIAL DISPLACED BY SAID MANDREL AGAINST SAID SURFACE TO THEREBY FORM SAID EXTENSION.
Claim 2
Dependent Claim
69 words
A PROCESS FOR FORMING A TUBULAR EXTENSION ON A LENGTH OF MOLDABLE MATERIAL THAT INCLUDES, PROVIDING A FORMING ZONE DEFINED BY A RIGID CLOSED SURFACE, POSITIONING SAID LENGTH ADJACENT SAID FORMING ZONE, INTRODUCING A ROTATING MANDREL INTO SAID FORMING ZONE, SAID MANDREL PENETRATING SAID MATERIAL, AND ORBITING SAID ROTATING MANDREL AROUND SAID SURFACE TO COMPRESS THE MATERIAL DISPLACED BY SAID MANDREL AGAINST SAID SURFACE TO THEREBY FORM SAID EXTENSION.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |