US2983639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for welding plastic pipe
Assignee: Pyramid Ind Inc
•
Filing: 1957-06-28
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Granted: 1961-05-09
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Expires: 1977-06-28
Abstract
No abstract record available.
Inventors
- 👤 Charles R Jageman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:54
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/022; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/70; B29C66/71; Y; Y10; Y10S; Y10S285/00; Y10S285/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF JOINING TWO PIPES MADE OF POLYETHYLENE MATERIAL COMPRISING COATING AN AREA OF THE INSIDE SURFACE OF ONE SAID PIPE WITH AN INFLAMMABLE SOLVENT FOR SAID MATERIAL, COATING AN AREA OF THE OUTSIDE SURFACE OF THE OTHER SAID PIPE WITH A SOLVENT FOR SAID MATERIAL TAKEN FROM THE GROUP OF BENZENE, GASOLINE, KEROSENE, AND TOLUENE, IGNITING SAID SOLVENT ON BOTH SAID PIPES, AND INSERTING SAID PIPE HAVING THE OUTSIDE SURFACE COATED INTO SAID PIPE HAVING THE INSIDE SURFACE COATED.
Claim 2
Independent Claim
81 words
A METHOD OF JOINING TWO PIPES MADE OF POLYETHYLENE MATERIAL COMPRISING COATING AN AREA OF THE INSIDE SURFACE OF ONE SAID PIPE WITH AN INFLAMMABLE SOLVENT FOR SAID MATERIAL, COATING AN AREA OF THE OUTSIDE SURFACE OF THE OTHER SAID PIPE WITH A SOLVENT FOR SAID MATERIAL TAKEN FROM THE GROUP OF BENZENE, GASOLINE, KEROSENE, AND TOLUENE, IGNITING SAID SOLVENT ON BOTH SAID PIPES, AND INSERTING SAID PIPE HAVING THE OUTSIDE SURFACE COATED INTO SAID PIPE HAVING THE INSIDE SURFACE COATED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |