Patent US3172708A successfully refreshed from Google Patents.
US3172708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hammer with handle fastening means
Assignee: Estwing Manufacturing Co Inc
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Filing: 1963-10-21
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Granted: 1965-03-09
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Aldor S E Reuterfors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:56
CPC Classifications
B; B25; B25G; B25G3/00; B25G3/02; B25G3/12; B25G3/28; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4958
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A PERCUSSIVE TOOL COMPRISING A METALLIC HEAD HAVING A HANDLE RECEIVING EYE EXTENDING THERETHROUGH AND A WOODEN HANDLE PORTION POSITIONED THEREIN, SAID EYE HAVING AN ENTRANCE END AND A LOCKING END, SAID EYE HAVING A SUBSTANTIALLY RECTANGULAR CROSS SECTIONAL AREA IN ALL PARALLEL PLANES TRANSVERSELY PERPENDICULAR TO THE AXIS OF SAID HANDLE PORTION BETWEEN SAID EYE ENDS, THE MINIMUM CROSS SECTIONAL AREA OF THE EYE BEING AT AN INTERMEDIATE ZONE BETWEEN SAID EYE ENDS, ALL FOUR WALLS OF THE EYE HAVING AN EXPANDING TAPER FROM SAID INTERMEDIATE ZONE TOWARD EACH OF SAID TWO ENDS, SAID HANDLE PORTION BEING TAPERED IN A FIRST PART OF PROVIDE A SNUG DRIVE FIT WITH THE TAPERED EYE WALLS EXTENDING FROM SAID ENTRANCE END TO SAID ZONE, A SECOND PART OF SAID HANDLE PORTION HAVING A SUBSTANTIALLY EQUAL TRANSVERSE RECTANGULAR CROSS SECTION FROM ITS POSITION AT SAID ZONE FORWARDLY TO ITS FRONT TERMINUS, SAID FRONT TERMINUS BEING DISPOSED ADJACENT SAID LOCKING END, FOUR SEPARATE WOODEN TAPERED WEDGES SNUGLY FITTED BETWEEN THE FOUR WALLS OF THE EYE FORWARDLY OF SAID ZONE AND THE ADJACENT SURFACE OF SAID SECOND HANDLE PORTION, ALL SURFACES OF SAID HANDLE PORTION AND SAID EYE AND ALL SURFACES OF SAID WEDGES BEING COATED WITH A PLASTIC RESIN ADHESIVE, AND A MOISTURE RESISTANT SEAL CLOSING SAID LOCKING EYE.
Claim 2
Dependent Claim
215 words
A PERCUSSIVE TOOL COMPRISING A METALLIC HEAD HAVING A HANDLE RECEIVING EYE EXTENDING THERETHROUGH AND A WOODEN HANDLE PORTION POSITIONED THEREIN, SAID EYE HAVING AN ENTRANCE END AND A LOCKING END, SAID EYE HAVING A SUBSTANTIALLY RECTANGULAR CROSS SECTIONAL AREA IN ALL PARALLEL PLANES TRANSVERSELY PERPENDICULAR TO THE AXIS OF SAID HANDLE PORTION BETWEEN SAID EYE ENDS, THE MINIMUM CROSS SECTIONAL AREA OF THE EYE BEING AT AN INTERMEDIATE ZONE BETWEEN SAID EYE ENDS, ALL FOUR WALLS OF THE EYE HAVING AN EXPANDING TAPER FROM SAID INTERMEDIATE ZONE TOWARD EACH OF SAID TWO ENDS, SAID HANDLE PORTION BEING TAPERED IN A FIRST PART OF PROVIDE A SNUG DRIVE FIT WITH THE TAPERED EYE WALLS EXTENDING FROM SAID ENTRANCE END TO SAID ZONE, A SECOND PART OF SAID HANDLE PORTION HAVING A SUBSTANTIALLY EQUAL TRANSVERSE RECTANGULAR CROSS SECTION FROM ITS POSITION AT SAID ZONE FORWARDLY TO ITS FRONT TERMINUS, SAID FRONT TERMINUS BEING DISPOSED ADJACENT SAID LOCKING END, FOUR SEPARATE WOODEN TAPERED WEDGES SNUGLY FITTED BETWEEN THE FOUR WALLS OF THE EYE FORWARDLY OF SAID ZONE AND THE ADJACENT SURFACE OF SAID SECOND HANDLE PORTION, ALL SURFACES OF SAID HANDLE PORTION AND SAID EYE AND ALL SURFACES OF SAID WEDGES BEING COATED WITH A PLASTIC RESIN ADHESIVE, AND A MOISTURE RESISTANT SEAL CLOSING SAID LOCKING EYE.
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |