US3274747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing tubing
Assignee: Mueller Brass Co
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Filing: 1964-08-14
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Granted: 1966-09-27
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Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 John R Fueslein
- 👤 Robert R Rader
- 👤 Edward C Roper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:08
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/11; F16L55/1141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD FOR MAINTAINING THE INTERIOR OF TUBULAR MEMBERS DEVOID OF CONTAMINATION AND DEPOSITS FOR PROLONGED PERIODS OF TIME WHICH COMPRISES THE STEPS OF CLEANING THE INTERIOR OF THE MEMBERS TO REMOVE UNDERSIRABLE DEPOSITS FROM THE INNER SURFACES THEREOF, PURGING THE INTERIOR OF THE CLEANED SAID MEMBERS WITH A SUBSTANTIALLY MOISTURE-FREE INERT FLUID, AND THEREAFTER SEALING SAID INERT FLUID IN THE INTERIOR OF SAID MEMBERS.
Claim 2
Independent Claim
65 words
A METHOD FOR MAINTAINING THE INTERIOR OF TUBULAR MEMBERS DEVOID OF CONTAMINATION AND DEPOSITS FOR PROLONGED PERIODS OF TIME WHICH COMPRISES THE STEPS OF CLEANING THE INTERIOR OF THE MEMBERS TO REMOVE UNDERSIRABLE DEPOSITS FROM THE INNER SURFACES THEREOF, PURGING THE INTERIOR OF THE CLEANED SAID MEMBERS WITH A SUBSTANTIALLY MOISTURE-FREE INERT FLUID, AND THEREAFTER SEALING SAID INERT FLUID IN THE INTERIOR OF SAID MEMBERS.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |