US3125657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
colten
Assignee: Bristol Corp
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:03
CPC Classifications
H; H05; H05B; H05B3/00; H05B2214/00; H05B2214/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
AN INSULATING AND HEATING UNIT, COMPRISING A PREFORMED ELONGATED CYLINDRICAL MEMBER HAVING A LONGITUDINAL AXIAL HOLE THERETHROUGH AND A SLIT EXTENDING THE FULL LENGTH OF SAID MEMBER PARALLEL TO SAID HOLE AND EXTENDING INWARDLY FROM THE EXTERNAL SURFACE TO SAID HOLE, SAID CYLINDRICAL MEMBER BEING RESILIENT AND FORM RETAINING WITH THE EDGES ALONG SAID SLIT BEING SUBSTANTIAL TOGETHER, A HEATING ELEMENT IN SAID HOLE ON THE INTERNAL SURFACE OF SAID MEMBER CONSISTING OF AN ELECTRICAL RESISTANCE WIRE ARRANGED IN A PLURALITY OF PARALLEL SECTIONS DISPOSED IN AND CONNECTED IN SERIES BY END PORTIONS, SAID ELEMENT COMMENCING AT ONE EDGE OF SAID OPENING AND TERMINATING AT THE OTHER EDGE THEREOF, LONGITUDINAL MEANS ON THE INTERNAL WALL OF SAID MEMBER DISPOSED BETWEEN AND PARALLELING SAID SECTIONS OF WIRE, AND MEANS FOR RETAINING SAID SECTIONS IN A PREARRANGED CONFIGURATION.
Claim 2
Dependent Claim
136 words
AN INSULATING AND HEATING UNIT, COMPRISING A PREFORMED ELONGATED CYLINDRICAL MEMBER HAVING A LONGITUDINAL AXIAL HOLE THERETHROUGH AND A SLIT EXTENDING THE FULL LENGTH OF SAID MEMBER PARALLEL TO SAID HOLE AND EXTENDING INWARDLY FROM THE EXTERNAL SURFACE TO SAID HOLE, SAID CYLINDRICAL MEMBER BEING RESILIENT AND FORM RETAINING WITH THE EDGES ALONG SAID SLIT BEING SUBSTANTIAL TOGETHER, A HEATING ELEMENT IN SAID HOLE ON THE INTERNAL SURFACE OF SAID MEMBER CONSISTING OF AN ELECTRICAL RESISTANCE WIRE ARRANGED IN A PLURALITY OF PARALLEL SECTIONS DISPOSED IN AND CONNECTED IN SERIES BY END PORTIONS, SAID ELEMENT COMMENCING AT ONE EDGE OF SAID OPENING AND TERMINATING AT THE OTHER EDGE THEREOF, LONGITUDINAL MEANS ON THE INTERNAL WALL OF SAID MEMBER DISPOSED BETWEEN AND PARALLELING SAID SECTIONS OF WIRE, AND MEANS FOR RETAINING SAID SECTIONS IN A PREARRANGED CONFIGURATION.
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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) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |