US3295398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-punching t fitting
Assignee: Individual
•
Filing: 1964-05-11
•
Granted: 1967-01-03
•
Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Eldon W Morain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:18
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123; Y10T408/00; Y10T408/55; Y10T408/564
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PUNCH FOR FORCING A HOLE IN THE WALL OF A PIPE COMPRISING: A SUBSTANTIALLY CYLINDRICAL THREADED SHANK TERMINATING IN A REDUCED DIAMETER TAPERED CONCENTRIC TUBULAR PUNCH END PORTION, SAID TUBULAR PUNCH END PORTION TERMINATING IN A PUNCHING FACE, THE TAPERED EXTERNAL SURFACE OF SAID PUNCH END PORTION DEFINED IN PART BY AT LEAST ONE LONGITUDINAL CUTTING EDGE EXTENDING INWARDLY FROM SAID PUNCHING FACE.
Claim 2
Dependent Claim
64 words
A PUNCH FOR FORCING A HOLE IN THE WALL OF A PIPE COMPRISING: A SUBSTANTIALLY CYLINDRICAL THREADED SHANK TERMINATING IN A REDUCED DIAMETER TAPERED CONCENTRIC TUBULAR PUNCH END PORTION, SAID TUBULAR PUNCH END PORTION TERMINATING IN A PUNCHING FACE, THE TAPERED EXTERNAL SURFACE OF SAID PUNCH END PORTION DEFINED IN PART BY AT LEAST ONE LONGITUDINAL CUTTING EDGE EXTENDING INWARDLY FROM SAID PUNCHING FACE.
References Cited (Backward Citations)
US3142205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |