Patent US3287813A successfully refreshed from Google Patents.
US3287813A
Expired / Lapsed
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Gauge for coupling components
Assignee: Crawford Fitting Co
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Filing: 1961-12-04
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Granted: 1966-11-29
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Fred A Lennon
- 👤 Emery J Zahuranec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:57
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/38; G01B3/42; G01B3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A NO-GO GUAGE FOR DETERMINING THE HIGH PRESSURE AND LOW PRESSURE RELATIVE AXIAL POSITIONS OF ROTATIONALLY THREADED COUPLING COMPONENTS COMPRISING A GENERALLY RECTANGULAR BODY HAVING BIFUCATED WORK ENGAGING ENDS OF A THICKNESS DIFFERING BY AN AMOUNT EXPRESSED IN UNITS WHICH IS EQUAL TO THE RECIPROCAL OF THE NUMBER OF ROTATIONS PER UNIT LENGTH TIME DIFFERENCE OF THE NUMBER OF ROTATIONS FOR HIGH PRESSURE POSITIONING AND THE NUM-
Claim 2
Dependent Claim
67 words
A NO-GO GUAGE FOR DETERMINING THE HIGH PRESSURE AND LOW PRESSURE RELATIVE AXIAL POSITIONS OF ROTATIONALLY THREADED COUPLING COMPONENTS COMPRISING A GENERALLY RECTANGULAR BODY HAVING BIFUCATED WORK ENGAGING ENDS OF A THICKNESS DIFFERING BY AN AMOUNT EXPRESSED IN UNITS WHICH IS EQUAL TO THE RECIPROCAL OF THE NUMBER OF ROTATIONS PER UNIT LENGTH TIME DIFFERENCE OF THE NUMBER OF ROTATIONS FOR HIGH PRESSURE POSITIONING AND THE NUM-
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |