US3231014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire tube boiler
Assignee: Individual
•
Filing: 1964-01-23
•
Granted: 1966-01-25
•
Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Koenig Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:16
CPC Classifications
F; F28; F28F; F28F19/00; F28F19/02; F22; F22B; F22B37/00; F22B37/02; F22B37/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A FIRE TUBE BOILER, A FIRE TUBE, A READILY REMOVABLE AND DISPOSABLE LINER RECEIVED IN THE BORE OF SAID FIRE TUBE FOR PROTECTING THE INTERNAL SURFACES THEREOF FROM THE CORROSIVE AND EROSIVE CONSTITUENTS OF THE PRODUCTS OF COMBUSTION, SAID LINEAR BEING FORMED OF A ROLLED METALLIC PLATE SHAPED TO BE RECEIVED IN SAID TUBE SO THAT THE EXTERIOR SURFACE OF SAID LINEAR IS DISPOSED CONTIGUOUS TO THE INTERNAL SURFACE OF SAID FIRE TUBE, SAID ROLLER LINEAR HAVING THE ENDS OF THE PLATE DEFINING THE SAME DISPOSED IN OVERLAPPING POSITION WHEREBY THE INHERENT ELASTICITY OF THE ROLLED PLATE SERVES TO MAINTAIN THE WALLS OF SAID LINER IN FRICTIONAL
Claim 2
Dependent Claim
108 words
IN A FIRE TUBE BOILER, A FIRE TUBE, A READILY REMOVABLE AND DISPOSABLE LINER RECEIVED IN THE BORE OF SAID FIRE TUBE FOR PROTECTING THE INTERNAL SURFACES THEREOF FROM THE CORROSIVE AND EROSIVE CONSTITUENTS OF THE PRODUCTS OF COMBUSTION, SAID LINEAR BEING FORMED OF A ROLLED METALLIC PLATE SHAPED TO BE RECEIVED IN SAID TUBE SO THAT THE EXTERIOR SURFACE OF SAID LINEAR IS DISPOSED CONTIGUOUS TO THE INTERNAL SURFACE OF SAID FIRE TUBE, SAID ROLLER LINEAR HAVING THE ENDS OF THE PLATE DEFINING THE SAME DISPOSED IN OVERLAPPING POSITION WHEREBY THE INHERENT ELASTICITY OF THE ROLLED PLATE SERVES TO MAINTAIN THE WALLS OF SAID LINER IN FRICTIONAL
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |