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Patent US3220630A successfully refreshed from Google Patents.
US3220630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating device for joining pipe
Assignee: Catalyst Research Corp
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Filing: 1963-01-21
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Granted: 1965-11-30
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Rogers Maxwell Bernard
- 👤 Breckenridge Davis Templeton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:10
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A HEAT CLAMP FOR JOINING PIPE COMPRISING A FLEXIBLE ARCUATELY BENDABLE METAL STRIP HAVING FREE END PORTIONS, HOUSING MEANS SECURED ON SAID STRIP, HEATING MATERIAL CONTAINED WITHIN SAID HOUSING MEANS, SAID CLAMP BEING SHAPED FOR SUBSTANTIALLY CONFORMING TO THE PIPE TO BE HEATED WITH THE HOUSING MEANS FACING THE PIPE, AND SAID CLAMP INCLUDING RELESABLE LOCKING MEANS FOR LOCKING THE CLAMP TO THE PIPE AND RELEASING IT THEREFROM.
Claim 2
Dependent Claim
68 words
A HEAT CLAMP FOR JOINING PIPE COMPRISING A FLEXIBLE ARCUATELY BENDABLE METAL STRIP HAVING FREE END PORTIONS, HOUSING MEANS SECURED ON SAID STRIP, HEATING MATERIAL CONTAINED WITHIN SAID HOUSING MEANS, SAID CLAMP BEING SHAPED FOR SUBSTANTIALLY CONFORMING TO THE PIPE TO BE HEATED WITH THE HOUSING MEANS FACING THE PIPE, AND SAID CLAMP INCLUDING RELESABLE LOCKING MEANS FOR LOCKING THE CLAMP TO THE PIPE AND RELEASING IT THEREFROM.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |